Skip advert
Advertisement

BMW 118d Convertible

We get behind the wheel of BMW's new 60mpg soft-top

Find your BMW 1 Series
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 difficult not to be charmed by this BMW. It’s rewarding to drive and is the best-looking 1 Series by a mile. Plus, despite supposedly playing second fiddle to the more glamorous 3 Series Convertible, it feels nearly as special – and is far cheaper. However, compared to its rivals, it’s not particularly good value, even if this 118d promises low running costs.

Advertisement - Article continues below

Could the best variant of BMW’s facelifted 1 Series Convertible be this unassuming diesel? Of course, we’d all rather have the high-powered 135i – but in the real world of escalating fuel prices, the stylish 118d M Sport, which is capable of returning around 60mpg, is very appealing indeed.

An open-topped version of the all-new 1 Series – likely to be badged the 2 Series – will come in 2013. But for now, buyers have to be content with the modest visual updates that were rolled out this year. These include a more aerodynamic front bumper and tweaked headlamps, which now feature LED running lights.

With the roof down, the compact cabrio draws both admiring and envious glances, while the cabin feels reassuringly premium. We would recommend forking out for leather trim, and steering clear of the body-coloured plastic inserts.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

1 Series

2024 BMW

1 Series

76,421 milesManualDiesel1.5L

Cash £12,200
View 1 Series
1 Series

2019 BMW

1 Series

77,000 milesAutomaticPetrol3.0L

Cash £18,795
View 1 Series
1 Series

2024 BMW

1 Series

37,763 milesManualPetrol1.5L

Cash £15,034
View 1 Series
1 Series

2019 BMW

1 Series

71,009 milesAutomaticPetrol3.0L

Cash £18,961
View 1 Series

So, what makes the 118d so compelling? It’s not one single aspect, but the car as a whole. On top of its excellent efficiency, it emits only 129g/km of CO2. Power output is rated at a modest 143bhp, yet the 300Nm of torque is evident at normal speeds, so the BMW feels effortlessly fast. Ignore the 0-62mph sprint time; it’s the in-gear punch that makes the difference on the move – and the 118d has plenty.

Many convertible buyers may still baulk at the idea of an oil-burner, despite the economic advantages. And yes, without a roof to shield your ears from the engine, there is a tell-tale clatter on start-up. 

However, at a halt in traffic the standard stop-start ensures serene silence. On the move, BMW has managed to quell the 2.0-litre turbodiesel’s noise brilliantly, and when you are driving quickly the newcomer rarely sounds like a diesel.

Fortunately, fast motoring is something this car encourages. While the steering is a little heavy at slow speeds, it’s direct, while turning into and then powering out of bends is very satisfying. All the driving controls are beautifully weighted, and the 1 Series flows from corner to corner. There’s not quite enough grunt on offer to unstick the rear tyres in the dry, but it’s still a rewarding car from behind the wheel.

You pay for that privilege, as the Convertible is not cheap. The similarly powerful Audi A3 2.0 TDI Sport Cabriolet is around £2,000 less, for instance. It’s not half as much fun to drive, though.

Skip advert
Advertisement

New & used car deals

BMW 1 Series

BMW 1 Series

RRP £39,575Used from £8,995
Mercedes A Class
BMW 2 Series

BMW 2 Series

RRP £36,320Used from £24,249
Audi A3

Audi A3

RRP £26,310Avg. savings £2,444 off RRP*Used from £9,995
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Forget the Jaecoo 7! The Zeekr 9X is a real Chinese Range Rover lookalike
Zeekr 9X - front 3/4

Forget the Jaecoo 7! The Zeekr 9X is a real Chinese Range Rover lookalike

Move over Bentley, this is the high-end SUV Zeekr thinks buyers are looking for
News
29 Jul 2026
New Haval H6 2026 review: impossible to ignore because it's so cheap
Haval H6 - front tracking

New Haval H6 2026 review: impossible to ignore because it's so cheap

The Haval H6 is a family SUV for hatchback money - but does it deserve success in the UK market?
Road tests
27 Jul 2026
New Audi Q9 2026 preview: prices, specs and release date for Range Rover rival
Ellis Hyde with the Audi Q9

New Audi Q9 2026 preview: prices, specs and release date for Range Rover rival

Audi wanted its new luxury flagship to make a statement wherever it goes, and that it will
News
29 Jul 2026