Skip advert
Advertisement

Fiat 500 TwinAir

Characterful two-cylinder engine breathes new life into Fiat's retro city slicker. We drove it for the first time on UK roads to see how the little Italian stacks up.

Find your Fiat 500
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

This is the engine for which the Fiat 500 has been crying out. The characterful two-cylinder delivers a remarkable mix of diesel-rivalling efficiency and strong straight-line pace. Adding to its appeal is a characterful soundtrack, as well as an eagerness that suits the trendy city car right down to the ground. Better still, the TwinAir demonstrates that, from an environmental point of view, there’s still plenty of life left in the traditional internal combustion engine.

Advertisement - Article continues below

It’s a case of back to the future for the latest version of the 500. The funky Fiat’s retro lines are a clear nod to the Fifties’ original, and now, bosses are looking to the past with an all-new engine for the stylish city car.

As with its legendary ancestor, the 500 is now available with a tiny two-cylinder unit. Promising 95g/km emissions and 68.9mpg economy, the TwinAir is claimed to be the most eco-friendly petrol engine on the planet – and Auto Express was first to try it in the UK.

Video: watch CarBuyer's video review of the Fiat 500

[[{"type":"media","view_mode":"content_narrow","fid":"69230","attributes":{"alt":"","class":"media-image"}}]]

Unlike the wheezy 13bhp original, the newcomer doesn’t deliver penny-pinching efficiency at the expense of performance. Thanks to the addition of a turbo and MultiAir variable valve timing, the 875cc unit offers a remarkable 85bhp.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

XC60

2020 Volvo

XC60

49,500 milesAutomaticPetrol2.0L

Cash £21,900
View XC60
4 Series

2020 BMW

4 Series

21,273 milesAutomaticPetrol2.0L

Cash £17,927
View 4 Series
Q3

2022 Audi

Q3

49,087 milesAutomaticPetrol2.0L

Cash £19,013
View Q3
Q2

2026 Audi

Q2

40,145 milesAutomaticPetrol1.5L

Cash £19,694
View Q2

Fire up the powerplant, and you’re left in no doubt about its two-cylinder layout, as it settles to a distinctive offbeat idle. On the move, the characterful sound is more like that of a motorbike than a car. Yet the engine always feels smooth, even when it’s extended to the red line.

However, the real surprise is the strong performance. A muscular 145Nm of torque is delivered at only 1,900rpm, giving punchy low-speed responses and strong overtaking pace. The 500 even feels comfortable on motorways, where keeping up with fast-moving traffic is no strain.

An Eco mode reins in the torque to 100Nm in a bid to cut the amount of fuel the TwinAir uses, and the standard gearshift indicator and stop-start system further boost efficiency. Go for the £730 optional Duologic semi-automatic transmission, and CO2 emissions drop to 92g/km, while economy increases to 70.6mpg.

Elsewhere, the car is the same as any other 500 – and that’s no bad thing. The cheeky looks still turn heads, and we love the neatly designed and well built cabin. It can’t match the MINI for driving fun, but the Fiat is agile and the five-speed manual gearbox serves up slick shifts.

Prices for the TwinAir start at £10,665 in entry-level Pop hatch guise, and rise to £16,065 for the top-spec 500C byDiesel cabrio. The two-cylinder line-up will expand next year to include a 65bhp normally aspirated car and a hot 105bhp model.

Rival: Toyota iQ

Clever packaging makes the extremely compact iQ one of the smallest four-seaters on the road – although rear space is very cramped, especially behind the driver. Strong refinement and excellent build quality are plus points, but the 1.0-litre engine is outperformed by Fiat’s 875cc unit.

Skip advert
Advertisement

New & used car deals

MG MG4

MG MG4

RRP £27,005Avg. savings £9,350 off RRP*Used from £9,995
Vauxhall Corsa

Vauxhall Corsa

RRP £19,690Avg. savings £5,308 off RRP*Used from £10,495
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,104 off RRP*Used from £15,299
Audi A3

Audi A3

RRP £26,295Avg. savings £4,213 off RRP*Used from £10,995
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Vauxhall, Citroen, Fiat and Peugeot fire risk: Over 390 models recalled amid fuel leak fears
Vauxhall Frontera Hybrid - dynamic front 3/4

Vauxhall, Citroen, Fiat and Peugeot fire risk: Over 390 models recalled amid fuel leak fears

392 more Stellantis cars have been recalled in the UK due to a faulty high-pressure fuel pipe which is thought could lead to fires
News
6 Feb 2026
Tesla has dropped its Standards: entry-level Model Y and Model 3 renamed
Tesla Model Y - front 3/4

Tesla has dropped its Standards: entry-level Model Y and Model 3 renamed

Just a few months after Tesla introduced the Standard name for its more basic models, it’s been dropped
News
6 Feb 2026
Five new Hyundais on the way: Kona, Bayon, Tucson, i20 and Ioniq 3 to reinvent brand’s range
2026 Hyundai Bayon - front

Five new Hyundais on the way: Kona, Bayon, Tucson, i20 and Ioniq 3 to reinvent brand’s range

New Tucson, i20 and Bayon – and Ioniq 3 EV – coming in an 18-month product onslaught
News
5 Feb 2026