Skip advert
Advertisement

New BMW i3s 2018 review

Is the sporty new BMW i3s worth £3k extra? We try the range-extender version to find out…

Find your BMW i3
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

It’s an impressive feat of engineering for BMW to give the i3 more performance without cutting the range at the same time, and to sharpen the way it drives. However, the standard car is hardly a slouch in the situations that matter, and is pretty good to drive, so we struggle to see how the i3s is worth the considerable extra you have to pay for it.

Advertisement - Article continues below

Arguably it was Tesla that introduced today’s car buyer to the concept of a high-performance electric vehicle, but now BMW’s city car is getting in on the act.

As part of revisions to the i3 range, a more powerful version of the car has been launched in the UK. Just like the standard variant, the new i3s is available as a full-electric model and a range-extender hybrid. As well as the stronger motor, it comes with its own chassis set-up.

• Best electric cars on sale

The headline figures are that the i3s has 181bhp rather than the standard car’s 168bhp. There’s also 270Nm of torque instead of the regular i3’s 250Nm. This means an increase of 6mph in the top speed and the 0-62mph time is cut by four tenths to 7.7 seconds.

At the same time, the i3s gets a revised suspension set-up to cope with the extra power. So the car sits 10mm lower on sports suspension, and comes with 20-inch alloys and wider tyres.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

A5 Sportback

2025 Audi

A5 Sportback

28,231 milesAutomaticPetrol2.0L

Cash £22,549
View A5 Sportback
Range Rover Evoque

2023 Land Rover

Range Rover Evoque

35,608 milesManualDiesel2.0L

Cash £17,806
View Range Rover Evoque
Range Rover Evoque

2020 Land Rover

Range Rover Evoque

37,221 milesAutomaticDiesel2.0L

Cash £22,623
View Range Rover Evoque
RAV4 Hybrid

2023 Toyota

RAV4 Hybrid

47,382 milesAutomaticPetrol2.5L

Cash £26,689
View RAV4 Hybrid

On the road, these revisions are more obvious than the extra power. While the i3s still feels firm, it’s more balanced and better controlled than the standard car. You notice it around town, but it’s more apparent on the open road, where it feels more positive and instils more confidence.

Advertisement - Article continues below

You can also feel that the i3s is quick, and as with every electric car, it responds as soon as you press the accelerator pedal. You’ll almost never be beaten away from the lights, it’s easy to take advantage of overtaking opportunities and the BMW has no problem keeping up on the motorway.

Trouble is, you can say all that about the standard car as well, so it’s hard to appreciate any substantial difference between an i3 and the i3s. And that’s a bit disappointing when the company charges an extra £3,000 for the new car.

Best city cars

However, this is really the only price you pay. Although the official tests say the i3s won’t go quite as far on a single charge as the standard version, BMW claims that, in the real world, there’s no difference between the two models.

We drove the i3s range-extender, and with just the electric motor driving, progress is pretty much silent. Only when the available range drops right down does the two-cylinder motor kick in to recharge the batteries. You will certainly hear the engine, especially around town, but the noise melts into the background at speed.

The BMW’s cabin remains supremely futuristic. The twin TFT screens, along with the distinctive materials and shapes used for the interior, give the whole thing a cutting-edge feel.

Best of all, this isn’t at the expense of equipment or passenger space. It’s easy to get in and out, with rear-hinged doors at the back, and you can get four adults inside in comfort. Admittedly, the boot isn’t that big, but it’s on par with what you’ll find in a city car like the VW up!.

For town dwellers with an eye on the environment and their bank balances, there’s a lot of appeal in an ultra-low-emission car. However, when the standard model is already so good, many people may find it hard to justify the £3,000 premium the i3s commands.

Skip advert
Advertisement
Chief sub-editor

Andy ensures that every word that is written in the magazine is up to the right standards week in week out. He has been writing, talking and presenting videos about cars for more than 30 years, and on the staff at Auto Express since March 2019.

New & used car deals

Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £3,908 off RRP*
Toyota Yaris Cross
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,050Avg. savings £3,360 off RRP*Used from £11,314
Kia Sportage

Kia Sportage

RRP £28,085Avg. savings £3,089 off RRP*Used from £13,290
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Best car engines of all time
Best car engines - header image

Best car engines of all time

What makes a great internal-combustion motor? We explain why these petrols, diesels and even a hybrid made the list
Features
3 Apr 2026
Maybe I’m just getting old, but modern cars should be less complex to drive
Opinion - Paul Barker driving the Polestar 3

Maybe I’m just getting old, but modern cars should be less complex to drive

Editor Paul Barker wants his car to act more like a car, and less like a smartphone
Opinion
1 Apr 2026
Motability to force black box trackers on all drivers under 30
Wheelchair user plugging a charging cable into a Vauxhall Astra Electric

Motability to force black box trackers on all drivers under 30

The Motability Scheme, which provides cars for disabled drivers, has faced new changes after Government tax hikes
News
2 Apr 2026