RAC Cars News


Shedding the kilos

By raccars Published

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Manufacturers are constantly trying to reduce weight in auto construction, a mission regularly thwarted by the obligation to include new safety gear and stronger frames. The answer has come in the form of research into new, super strong but super light weight materials. These are the lightest cars on the road today:

Mitsubishi Mirage

With a kerb weight of 845kg, the Colt's replacement is certainly light on its feet. Mitsubishi put a lot of effort into reducing weight for this new model with the aim of keeping it clean and frugal.

Toyota iQ

Toyota's 845kg rival to the SmartForTwo actually seats three or four - as long as they're not too big! It offers the same advantages as the Smart but, at nearly 100kg heavier, with a bit more space.

Ford Ka

Successive generations haven't found as much favour with the public as earlier models. It seems Ford's quest to keep weight down to 845kg has been achieved at the expense of quality, with the latest Ka's cabin constructed from a range of rather cheap and flimsy plastics.

Citroen C1

Fulfilling city car buyers' requirements with aplomb since 2005, the C1 and its badly engineered counterparts, the Peugeot 107/8 and Toyota Aygo, have recently been updated. This is 800kg of fun, urban driving experience, great for throwing around the city and admirably frugal.

Morgan 4/4

Super light weight sports cars are British manufacturer Morgan's speciality. The 4/4 comes with a four cylinder 1.6 litre Ford engine and 108bhp, which at only 795kg gets it from 0-62mph in about 8.0 seconds.


The Smart is an obvious contender for a list of light weight cars, being much smaller than just about everything else on the road! Don't be fooled by the flimsy appearance - at just 750kg it's actually quite robust.

Westfield Sport 1600i

Like the very similar Caterham Superlight, the Westfield is based upon the 1950s Lotus 7. Its 1.6 litre Ford engine may not sound impressive but thanks to a 620kg kerb weight, the Westfield is capable of supercar pace.

Morgan Three Wheeler

Only just qualifying to be called a car rather than a motorbike, the 550kg three wheeler can get from 0-62mph in 4.5 seconds as a result of its 79bhp V-Twin engine.

Caterham Superlight R400

A 2.0 litre engine sounds underwhelming but with only 500kg to lug around, the R400 moves like lightning. The explanation lies in a power to weight ratio that beats the Lamborghini Aventador.

Renault Twizy

Don't confuse the electric Twizy for a lawnmower - this 17bhp runaround is designed to zip around town which, at 474kg, it manages quite capably.

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