A new test of ‘real-world’ ranges of electric cars has shown that many don’t deliver on their claims – with some overstating their range by up to 100 miles.

The Smart Forease, unveiled at the Paris Motor Show, is a concept that is mainly about celebrating the brand's 20th anniversary.

The big theme at the 2017 Frankfurt motor show was electrification, as car manufacturers showed off their latest hybrids, plug-in hybrids and electric cars.

Hundreds of new models are debuting at the Frankfurt Motor Show, Europe's biggest auto show open in the Germany city until Sunday 24th September.

Daimler has announced a diesel part-exchange programme for any customer part-exchanging an older diesel car against selected Mercedes-Benz or smart models.

smart has added electric power to its fortwo and forfour line-up. It's the first time that the four-door model has had a smart electric drive model.

Smart is unveiling new versions of its electric car line-up at the Paris Motor Show, promising better performance, increased range and faster recharging.