Skip advert
Advertisement

MINI Cooper Convertible

Latest soft-top uses EfficientDynamics to improve economy

You don’t have to buy a BMW to feel the benefit of the firm’s EfficientDynamics technology. The German-owned MINI brand also gets the eco-friendly kit on its cars.

The hatchback and Clubman estate models use similar stop-start systems, along with regenerative braking and low-friction mechanical components. And you can now mix green motoring with wind-in-the-hair thrills in the new Convertible.

Advertisement - Article continues below

The second-generation soft-top has been a long time coming, as it arrives nearly three years after its hatchback counterpart first hit UK showrooms.

At first sight, you might be hard-pressed to distinguish the new modelfrom the previous open-air MINI. The designers have taken an evolutionary approach for the latest version’s styling, keeping the outgoing car’s cheeky looks and distinctive hood-down profile.

They have followed the same approach inside. The high-quality cabin is virtually identical to that of other models in the line-up, although passenger space in
the rear is even more limited.

Owners of the old drop-top will spot the new pop-up roll bar and the optional dash-mounted ‘openometer’ dial. This quirky kit, which costs £115, records how much time you drive with the hood down. Our Cooper test car was fitted with the firm’s 118bhp 1.6-litre petrol engine and mated to a six-speed manual gearbox.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

X5

2020 BMW

X5

43,950 milesAutomaticPetrol3.0L

Cash £39,949
View X5
E-Class Coupe

2020 Mercedes

E-Class Coupe

84,500 milesAutomaticDiesel2.0L

Cash £19,449
View E-Class Coupe
M135i

2024 BMW

M135i

52,750 milesAutomaticPetrol2.0L

Cash £21,749
View M135i
Polo GTI

2021 Volkswagen

Polo GTI

51,250 milesAutomaticPetrol2.0L

Cash £17,449
View Polo GTI

It uses the same Bosch stop-start unit as the BMW, and operates in the same way. Put the car into neutral as you come to a halt, and the engine cuts out immediately. Dip the clutch pedal and the motor fires back into life.

The set-up begins working less than a mile after a cold start, helping to maximise fuel savings over a cross-town commute. On our test route, the rag-top returned 35.7mpg, which is less than 3mpg shy of MINI’s official 38.2mpg claim.

Better still, the Cooper doesn’t leave you feeling as if you have made compromises to gain those fuel savings. While the bodyshell lacks the hatch’s stiffness, the Convertible is still great fun. The steering is crisp and well weighted, and the compact dimensions help to give it great agility in tight corners.

With the hood stowed, you can also enjoy the rasping exhaust note. On the other hand, drive for long periods with the roof down and the extra aerodynamic drag will have an adverse effect on economy. A long, topless stint on the motorway resulted in our overall return dipping to 33.4mpg.

There’s also a question mark over the price of the Cooper. At £15,995, the MINI is nearly as expensive as dedicated roadsters. The faster and even more engaging entry-level Mazda MX-5 1.8i, for example, costs only £345 more.

But even these black marks fail to take the shine off the MINI’s appeal. For most motorists – particularly those living in built-up areas – its EfficientDynamics technology will result in financial savings.

Details

WHY: We love the new MINI, but how does the drop-top rate? Stop-start should make for a quiet wait at the lights.

Skip advert
Advertisement

New & used car deals

Nissan Qashqai

Nissan Qashqai

RRP £27,435Avg. savings £5,987 off RRP*Used from £8,995
Kia Sportage

Kia Sportage

RRP £28,085Avg. savings £3,338 off RRP*Used from £10,995
Omoda 5

Omoda 5

RRP £24,040Avg. savings £1,539 off RRP*Used from £18,490
Toyota Yaris Cross
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Ford Focus: full details on the iconic name’s SUV return
Ford Focus exclusive image

New Ford Focus: full details on the iconic name’s SUV return

An all-new Ford Focus is set to make a comeback and our exclusive image previews how it could look
News
10 Aug 2026
Long-term test: Volvo EX90 Ultra Twin Motor Performance
Volvo EX90 Ultra Twin Motor Performance - family header

Long-term test: Volvo EX90 Ultra Twin Motor Performance

First report: Range-topping version of flagship SUV joins our fleet and is fast becoming a family favourite
Long-term tests
9 Aug 2026
New Hyundai Ioniq 9 Calligraphy Black Ink has a price to write home about
New Hyundai Ioniq 9 Calligraphy Black Ink - front

New Hyundai Ioniq 9 Calligraphy Black Ink has a price to write home about

Design tweaks inside and out give electric SUV a menacing look, taking Hyundai into rarefied pricing territory
News
7 Aug 2026