• Home
  • Advice
  • Brands
  • Partners
  • News
  • Reviews
  • Forum
  • New car ratings

Our all-new and unique Expert Rating system analyses new cars based on dozens of UK media reviews to give you the best possible car buying advice. Check it out now!

The ten golden rules for buying a car

Buying a new or used car? Follow these pearls of wisdom to get the right car at the right price.

Our commercial partners. Click on the logos for more information and special offers

The ten golden rules for buying a car 1
The ten golden rules for buying a car 2
The ten golden rules for buying a car 3
The ten golden rules for buying a car 4
The ten golden rules for buying a car 5
The ten golden rules for buying a car 6

Rule 8. Get everything in writing

Whenever anyone at a car dealership offers you anything, promises anything, gives you a quotation or provides an explanation for anything, insist that they put it in writing, along with any conditions.

Car dealers are notorious for making sweeping promises that they subsequently fail to deliver on.

One of the most common is for the sales manager to offer a free annual service to make up for any problems during the sales process. Maybe the car was damaged in pre-delivery or there was a mistake in the order and you didn’t get your sunroof.

You can bet your life savings that when you turn up for your free service next year, the service department won’t know anything about it and the sales manager will have no recollection of making such a grand offer.

If you don’t have it in writing, it’s worthless.

Car salesman in showroom
“Trust me!” No, don’t trust him.


The same rule applies to quotations. A salesperson might quote you £24,350 as the total price for a particular car, but when you come back the next day to place your order it’s suddenly become £25,950.

When you query it, the salesperson can’t remember because he/she has been discussing half a dozen different cars with other customers since then, and your careful budget calculations have now gone out the window.

If you pay a dealer a deposit to secure a car, get a receipt that specifically notes that the payment is for a deposit for that car, including the registration number or VIN (chassis number).

If you are paying a deposit over the phone, request an immediate email confirmation and the receipt in the post that day.

If a dealer is offering or agreeing to anything as part of the negotiation of the sale, get it written into the contract. Both parties should initial each specific point as well as sign the contract.

Remember, a car dealer’s verbal promises are worth nothing. Some dealers will refuse to provide a written quotation for you to take away from the showroom (because they don’t want you take it to another dealer and ask them to beat it). If they won’t put it in writing, it’s not real. Walk away and do not accept such behaviour (see Rule 4).

Next page: This is not the only car in town

For the best independent and impartial car finance advice on the internet, always check with The Car Expert:

  • Subscribe to our newsletter for weekly tips and the latest offers from car manufacturers
  • Follow us on Facebook and Twitter to see our latest articles as soon as we publish them
  • Bookmark our site so you can check back regularly
Stuart Masson
Stuart Massonhttps://www.thecarexpert.co.uk/
Stuart is the Editorial Director of our suite of sites: The Car Expert, The Van Expert and The Truck Expert. Originally from Australia, Stuart has had a passion for cars and the automotive industry for over thirty years. He spent a decade in automotive retail, and now works tirelessly to help car buyers by providing independent and impartial advice.

The Car Expert partners

Our commercial partners. Click on the logos for more information and special offers

The ten golden rules for buying a car 7
The ten golden rules for buying a car 3
The ten golden rules for buying a car 4
The ten golden rules for buying a car 5
The ten golden rules for buying a car 6

More expert advice

Back pain caused by car seats has caused more than a...

Uncomfortable and poor-quality car seats are costing the UK economy billions annually due to burden on the NHS and employees taking sick leave.

3 million vehicles removed from roads due to stricter MOTs

Having introduced new MOT rules in May last year, the DVSA has confirmed that millions of dangerous vehicles have since been removed from the road.

Should drivers be fined for leaving their engines idling?

Improving urban environments is highly important, and many believe action should be taken towards drivers leaving their engine idle – but what should be done?

How to understand a PCP car finance quote

Thousands of people look at a PCP car finance quote and are hopelessly confused by all the different numbers. Cut through the confusion with this guide.

Smoking can decrease the value of a car by up to...

Getting a good price for your car when you sell is everyone's goal. However, mileage and age may not be the only things significantly affecting your car value.


  1. hi stuart ,
    is it right that a balloon payment on a bmw new car purchase deal , cannot be reduced by early repayment sums . ?we were told by their salesmen that we could reduce the balloon payment by early overpayments. how much interest is included in the balloon payment,? would it typically be more than the interest accruing in our regular monthly payment on a pcp deal?

    • Hi Robert. Normally no, the balloon amount at the end of the term is fixed as it represents the predicted value of the car at that time. Usually overpayments will reduce the monthly payment amount, which includes the interest payable on the balloon. Some finance companies will allow you to use overpayments to shorten the term, but this is less common.

      You pay the same APR on the balloon as you do on the monthly payments. However, you are paying the interest for the whole loan amount (inc. balloon) up-front. Making overpayments will reduce the total amount of interest you pay as you are reducing the amount of debt outstanding.

  2. Hi Stuart, I’m considering taking a PCP out on a brand new Audi S3, I have a considerable deposit that I can put down, 12k to be exact which makes the monthly payments easily affordable but my concern is, that after the 3 or 4 year payment term comes to an end, the difference between the GFV and what the dealership actually values the car at at the time of trade in, the actual deposit I’ll have to put towards another PCP deal will be considerably less and the payments will be considerably more. So 12k inital deposit turns into 2k after 3 years so in effect 10k lost! Are people aware of this?

    • Hi Rob. Always assume that you will have no equity over and above the GMFV. If you do, then great. But never start counting equity in advance.

      It’s not so much as “£10K lost” as “£12K of cash lost now but lower monthly payments for three years”. If you put no deposit in, your monthly payments would be much higher and you would also be paying interest on all that extra money borrowed, so your Total Amount Payable would go up.

      (But you are right in that most people seem to be unaware of this; they get sucked into a PCP and then get to the end of it and realised they are screwed when they want to change for another similar car)

  3. Hi Stuart I recently sighted a paper at BMW for them to check my finance no handover paper and paid 500 does that mean I am legally binded to the car also the invoice price is much higher than the actual price of car is that correct?

    • Hi Jasmin. If you signed a form for them to “check your finance”, this was almost certainly a finance application. The finance company generally does not check your credit score or review your financial situation until they have a formal application – it’s not in their interests and it’s certainly not in yours.

      If you have signed a form and paid the dealer £500, they consider you to have bought the car.

      The invoice price may be different from the advertised price of the car, but there should be a good reason why. If it’s a used car, the advertised price won’t include road tax. Dealers will often also try to throw in an admin fee that may have been mentioned in very small print in the advertisement or on the car’s window display, plus they will almost always try to sell you extras like GAP insurance and other crap that you don’t need or want. Often they will assumptively include this in the finance quotation and hope you won’t demand they remove it later on.

  4. Hi
    I am 2 years and 2 months in to a 36mth pcp on a skoda citigo. I have kept up my payments of £124.70 per month this totals £2750 ( approx ) . I want to give up my PCP now and don’t understand if I will have to pay any more money as I have paid for more than 50% of the 3 years could I hand it back without a penalty ?

  5. Hi Stuart
    I spoke to a well known car dealership at the weekend explain what I would like for my purchase. He phoned me back a few hours later saying he thought he had found a car for me. He sounded very convincing, but it was a ‘whirlwind’ of a conversation and before I knew it I was paying him £500 over the phone. He finished by saying “congratulations you’ve just bought yourself ….etc”. He sent me an order form via email the next morning which I printed off ready to sign. I haven’t even seen the car yet let alone test driven it,, what is your advice here please? I have been out of the car buying game for a very long time ,, I expect I have been somewhat naive?!!

  6. Hi Stuart. I found a VW Sharan through a dealer on carwow, who didnt have the vehicle “in their premises” but said they would procure the car for me from “VW HQ” in Milton Keynes. He was not willing to negotiate the price, either for a cash deal or PCP contract. So I took that car details/specs/regtn to a local (big) VW dealer close to me. They offered to price match, gave more discount etc and get the vehicle for me, provided I paid a “booking fee” of £250. I gladly did, paid on credit card & they gave me a receipt for my payment. It was agreed that as the vehicle was “off-site”- once it arrives, I could see the vehicle, colour, condition, test drive etc & then, once I agree, they go ahead with the formalities. No contracts signed as yet. All verbal. All went as plans. Vehicle arrived after 8 days with the beast from the east around!!!. We test drove etc…but not being sure of flexibility of the third row seating (which later we are convinced that the Ford Galaxy definitely has an upper hand!!)…we hesitantly, verbally, told them to proceed. As luck would have had it, next day, we liked the Ford Galaxy Titanium X, immediately came back to VW dealer & told them that we would want to cancel our order. They say now that they have ‘physically purchased the vehicle from VW” and I got to pay for it???!??..
    I said I am surely not. Would want to cancel my order. Its been less than 24 hours. But they claim: “I verbally consented them to proceed”??..? No papers signed yet.

    What are my rights as a consumer?
    Do I have a legal right, if any, to get my £250 back as the car wasn’t actually there in the VW dealership premises from the outset. It was off site?

    I am lost in this jargon of the rules- of purchasing at a dealers premises.

    Mine- is a peculiar situation.
    Could you help & advise your take & what should my approach be to tackle with this dealer please?

    • Hi Arijit. You gave the dealer a deposit, so you have essentially agreed to buy the car. You have admitted that you inspected the car and confirmed with the dealer that you wanted to buy it, so you have basically bought the car. If you didn’t want the car or were not sure, that was the time to walk away and get your deposit back. It’s not an off-site sale because you went to the dealer and drove the car.

      You then found another car you liked better the next day, and tried to get out of your previous commitment to buying a car from the first dealer. That’s not a peculiar situation, it happens all the time. But you don’t have the right to your £250 back. The good news is that the dealer is unlikely to pursue you for the full cost of the vehicle if you insist on withdrawing from your commitment.

      For more information, have a read of our article on buying a car then changing your mind.

  7. Hi Stuart,

    I test drove a car at Mercedes-Benz and confirmed I was after a particular spec and colour combo. The salesman sourced me said car, but better spec, after negotiations told them I was happy to purchase and paid my deposit. The car sourced, still within the same group chain, but at different site, all ok as got voice message they were waiting to go and collect, car is still showing for sale on the other site website, and my salesman rang me to say the the dealership has brought that car in for another person who has yet to see it, though I’ve got the order raised and deposit paid and car still advertised for sale!
    They have contractually agreed to my purchase as taken deposit and I emailed to confirm details and reg no re car I’d placed deposit on.
    What are my rights here please? I think it appears to be down to site sale stats because if car had been brought in for another person, it wouldn’t have been reserved with deposit and not advertised on the website or Auto Trader surely!

    Many thanks,

    • Hi Liz. Unfortunately, it’s common that a car advertised nationally is “bought” by more than one person at the same time. It’s inevitable that at some point, two (or more) people in different showrooms will decide on the same car and sign an order/place a deposit.

      Often, the problem isn’t noticed until a day or so later (especially if this has happened over the weekend) when the admin people are filing all the paperwork for vehicle sales. What the dealer group should do in these cases is check to see who placed their order first, and that person should get the car.

      The problem can be compounded by cars not being removed from the sales websites once a deposit is placed. At some dealers, it is policy not to remove the car from a website until all the money has been received – as that is the point when the car is really sold. This can cause confusion and annoyance for customers who think a car is available when it is basically reserved pending full payment.

      Ultimately, it doesn’t matter what your contract says if the dealer can’t actually supply the car. If you think that the dealer has behaved incorrectly and been deliberately misleading, you can report them to Trading Standards or try and sue them through the courts. However, your chances of success are likely to be low unless you have excellent proof of this behaviour (which you almost certainly don’t).

  8. Interesting reading!
    I’m recently placed a deposit on a car and got a pre-purchase inspection done with the RAC. I intend to export the car. The inspection came back good but noted the front tyres were close to the legal limit. I contacted dealer to see could I get new tyres or a discount but he was adamant that they only replace at 2.5mm and the tread depth was slightly over this figure so he wouldn’t budge.

    I had intended to travel to collect the car in a day or two, flight booked etc, but due to work commitments I now have to put the journey off until the following week which will be the start of April. He insisted for the full payment on the car by the end of the month, to balance the books (or words to that effect). Even though the car essentially got a clean bill of health from the RAC, I would be wary of paying up front for a car that I haven’t inspected myself. I realize that if I didn’t proceed my deposit would be forfeited but I haven’t given him reason to think I’m not buying the car.

    The order form which was emailed to me noted ‘subject to inspection’ but did not mention anything about needing full payment by months end. Could he put the car back on the forecourt if I don’t pay the balance even though I said I would be travelling a week later? Initial contact was a week ago and now I cannot travel until 5th April so all in all it would be a little over 2 weeks from contact to drive away…doesn’t seem like an unreasonable length of time?

    • There should be a clause in the vehicle contract T&Cs that specifies how long you have to complete the purchase before the dealer is allowed to declare the contract void and put the car back up for sale.

      Yes, he will want to have the car paid for by the end of the month – dealers always do. But he’s unlikely to be able to enforce that in any way.

  9. Thanks Stuart, much appreciated, the other order was not raised thankfully so I’m now the happy owner! Kindest regards, Liz

  10. Hello. I paid a deposit to a VW dealer for a car offer that I find on the internet on wow car. So I couldn’t see the car at the dealer but he said he will order the car as this car should be still build. Next day I call the dealer to ask him to put an extra option for this car ( park assist ) and I sign the paper with the car with this extra options. Some days later the dealer calls me back and he said there is a good news and a bad one. The good news is he order the car and I can have it. The bad is I can’t have it with that extra Optional. I am wondering why I can have it with this extra option as long as the car is not built yet? If I change my mind I lost my deposit? The dealer order the car in the first day? Why he said in 2 day ,that I can add this extra option and then it is not possible any more?! My order is a petrol car that seems stop be ordering any more at present.

    • Hi Mihai. It sounds like either they are trying to source a car that has already been built or is already locked into the production schedule (which will arrive faster so they will get paid sooner), or that Volkswagen has changed something on the model and that option is no longer available (and the dealer didn’t realise or the information hadn’t been updated).

      Check with another Volkswagen dealer and see if they tell you it can be ordered with the options you want – after all, Volkswagen has quite a reputation for lying to everybody.

  11. Hi stuart. I went to see a car but it wasn’t at the showroom, the dealer asked me to pay a “holding deposit” of £500, and gave me an unsigned contract stating my car would be part exchanged for 1p. I specifically asked if it was,refundable and he said yes, and suggested I use a debit card as it was easier to refund onto. I was promised the car would be at the showroom three separare times and then told on the same day or night before that it wasn’t ready. I then decided to pull out, as I have been messed around and asked for my deposit back. What’s my outlook? Thanks, George

    • Hi George. If you haven’t signed anything, it’s difficult to prove what the money was for or that the dealer hasn’t met their contractual commitments. If you argue long and hard enough, you should get your money back but they’ll probably fight you for a while.

  12. Wonderful!!
    It would be a right suggestion when you buying a car. You should take car insurance before buying a new car. It is vital for your car safety. An accident may occur anywhere when you’re not prepared this before buying and driving a car. I give you great thumbs up for this great work. Keep updating new more ideas with us.

  13. Why do so many Brits buy German cars? It really puzzles me. They are certainly no more reliable than any other make these days and they are way overpriced and overrated. Why make the Germans rich at the expense of us Brits? It shocks me to see veterans attending the Cenotaph in London in November arriving there in German cars. They proudly fly the Union Jack and lay wreaths to their lost comrades. Then they return back to their homes in their German cars. Hypocritical behaviour that defies logic.

What are your thoughts? Let us know below.

Be the first to know

Would you like to stay up to date with The Car Expert?