Name: MG S9 (2026 onwards) | Expert Rating | The Car Expert
Rating: 0.0

MG S9 (2026 – present) | Expert Rating

Summary

The MG S9 – or MGS9 PHEV – is a seven-seat plug-in hybrid SUV and the largest offering in the MG UK range at the time of its arrival in Spring 2026.

Joining a growing large plug-in hybrid category that already includes the Hyundai Santa Fe and Mazda CX-80, as well as keenly-priced Chinese newcomers like the Omoda 9 and Chery Tiggo 9, the MG S9 is both longer and taller than the brand’s HS SUV.

“Space in the rear seats, which is the main reason you’d choose it over the HS, isn’t particularly great”, says Alastair Crooks of Auto Express, however adding that the SUV represents “extraordinary value for money.”

Parker’s Alan Taylor Jones adds that “mainstream rivals are better to drive” but the S9 feels more polished than Chinese newcomers like the Chery Tiggo 8 and Jaecoo 8. Electrifying.com’s Sam Burnett adds that the Hyundai Santa Fe and Kia Sorento are “objectively much nicer cars, but also much more expensive cars.”

As of June 2026, the MG S9 holds a New Car Expert Rating of B, with a score of 68%. While the SUV’s review scores are below average, this overall rating is helped by the car’s solid five-star safety credentials and a generous warranty.

More MG Expert Ratings, new car reviews, news and features

S9 highlights

Generous standard equipment list
Fantastic value-for-money
Spacious interior

S9 lowlights

Rivals are more refined on the road
Some cheaper interior finishes
Sluggish infotainment

Key specifications

Body style: Large SUV
Engines: petrol plug-in hybrid
Price: From £34,205

Launched: Spring 2026
Last updated: N/A
Replacement due: TBA

Image gallery

Media reviews

Highlighted reviews and road tests from across the UK automotive media. Click any of the boxes to view. Reviews are rather sparse in number at the moment, but that is sure to change in the coming weeks.

Featured reviews

“The MGS9 is extraordinary value for money and will appeal to anyone looking to ferry kids around while not breaking the bank on running costs. It comes with a few annoying quirks that spoil the experience.”

Model reviewed: Range overview

Score: 6 / 10

Read full review

Auto Express

Alastair Crooks

More reviews

Auto Trader

Model reviewed: Range overview
Score: 7 / 10
“The MG certainly delivers on space, practicality and equipment and its plug-in hybrid system is refined and seemingly efficient. It’s not the sharpest drive and there are some rough edges”
Author: Dan Trent
Read review

Car

Model reviewed: Range overview
Score: 8 / 10
“The driving experience is perfectly acceptable, especially when compared to upstart rivals, and you really can’t argue with the space you get. Equipment levels impress and it feels pretty plush inside if you’re willing to overlook a couple of questionable trims.”
Author: Alan Taylor-Jones
Read review

Electrifying.com

Model reviewed: Range overview
Score: 7 / 10
“MG has manoeuvred itself into a nice little corner of the market – more dependable than some of its upstart rival Chinese carmakers but plenty cheaper than the likes of Hyundai and Kia who made their name doing a similar sort of thing.”
Author: Sam Burnett
Read review

Parkers

Model reviewed: Range overview
Score: 7 / 10
“No other SUV offers this much space for seven for less than £40,000, making the MG S9 a great buy for many. Mainstream rivals are better to drive, but the S9 feels more polished than the likes of the Chery Tiggo 8 and Jaecoo 8.”
Author: Alan Taylor-Jones
Read review

Safety rating

Independent crash test and safety ratings from Euro NCAP

Overall score: 5 stars
Date tested: March 2026
Read the full Euro NCAP review

Adult protection: 84%
Child protection: 85%
Vulnerable road users: 74%
Safety assist: 77%

Eco rating

Independent economy and emissions ratings from Green NCAP

No eco rating

As of June 2026, the MG S9 has not been assessed by Green NCAP.

Running cost rating

Monthly cost of ownership data provided exclusively for The Car Expert by Clear Vehicle Data

Fuel consumption	Average	Score
Plug-in hybrid models	42 mpg	C

CO₂ output	Average	Score	Variation	Score
Plug-in hybrid models	18 g/km	A

Battery range	Average	Score	Variation	Score
Plug-in hybrid models	62 miles	D

Insurance group	Average	Score	Variation	Score
All models	44	E

The MG S9 is a relatively expensive car to own and run, according to whole-life cost numbers provided exclusively to The Car Expert by our data partner, Clear Vehicle Data.

While the plug-in hybrid SUV’s combined fuel economy and electric-only battery range are competitive when compared to rivals of this size, the car’s predicted insurance premiums are towards the expensive end of the market.

Reliability rating

Reliability data provided exclusively for The Car Expert by MotorEasy

No reliability rating

As of June 2026, we don’t have enough reliability data on the MG S9 to generate a reliability rating.

The Car Expert’s reliability information is provided exclusively to us using workshop and extended warranty data from our partner, MotorEasy, sourced from both official dealerships and independent workshops.

As soon as MotorEasy has sufficient data on the S9, we’ll publish the results here.

Recalls

Official DVSA safety recalls that have been issued for the MG S9

As of June 2026, we are not aware of any DVSA vehicle safety recalls affecting the MG S9. However, recall information is updated regularly, so this may have changed.

You can check to see if your car has any outstanding recalls by visiting the DVLA website or contacting your local MG dealer.