Skip advert
Advertisement

BMW Z4 vs rivals

We brave the elements to see if the new BMW Z4 can take the roadster crown from Porsche and Mercedes

Folding metal hard-tops claim to provide the best of both worlds – marrying cruising refinement with open-air thrills. But does the new BMW Z4 deliver on this promise?

The two-seater has a hi-tech aluminium roof in place of its predecessor’s fabric design. It’s also bigger and softer than the model it replaces, as the brand has given its sporty roadster an extra dose of sophistication. The car that BMW used as a benchmark when developing the Z4 was the Mercedes SLK.

Advertisement - Article continues below

Video: watch CarBuyer's video review of the BMW Z4

[[{"type":"media","view_mode":"content_narrow","fid":"68419","attributes":{"alt":"","class":"media-image"}}]]

Now in its second generation, this is the model that started the folding hard-top craze. A recent round of tweaks has improved its looks and sharpened the dynamics, but while the four-cylinder SLK 200 matches our BMW on price, it falls short on pace. So, we’ve given the Z4 a tougher test by pitching it against the more expensive SLK 280.

Refinement and sophistication are all very well, but a roadster should also be great to drive – and few drop-tops are as engaging as Porsche’s Boxster. It’s £5,054 more than the Z4, but with a powerful new engine and subtle facelift, the mid-engined machine is at the top of its game. Has the new BMW got what it takes to steal victory, or will the newcomer lose its head?

Verdict

When BMW developed the Z4, it had one target: the SLK. The Mercedes is a great benchmark, combining coupé comfort and security with wind-in-the-hair roadster thrills. It also serves up refinement and elegant looks, and has a desirable badge. Ignore the breathless entry-level four-cylinder model, and the SLK even provides genuine sports car pace.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

2 Series Active Tourer

2021 BMW

2 Series Active Tourer

41,500 milesManualDiesel1.5L

Cash £11,399
View 2 Series Active Tourer
208

2022 Peugeot

208

18,654 milesAutomaticPetrol1.2L

Cash £14,030
View 208
ZS

2023 MG

ZS

19,500 milesManualPetrol1.5L

Cash £13,560
View ZS
MG3

2022 MG

MG3

40,725 milesManualPetrol1.5L

Cash £8,884
View MG3

However, it can’t match the BMW here. The Z4’s folding metal roof is equally effective, while its bold looks turn even more heads. Better still, it costs less than the Merc, is sharper to drive and just as quick in a straight line. And the EfficientDynamics technology means owners can expect superb economy and low emissions.

But great roadsters need more than good looks, strong performance and wallet-friendly running costs. They should also entertain – as the Porsche does!

The mid-engined machine is totally absorbing to drive, with controls that are full of feedback. It’s also practical, and its fabric hood is as effective as its rivals’ metal designs. Superior pace and a more desirable image help the Boxster justify its price premium.

1st: Porsche boxster
With its superbly balanced chassis and perfectly weighted controls, the Boxster is a sheer delight to drive. On top of this, the 2.9-litre engine delivers strong performance, while the cabin is impressively practical. It’s pricey, but well worth it.

2nd: BMW Z4
Buyers who are in the market for a desirable and refined roadster need look no further than the Z4. The newcomer has eye-catching styling, a fantastic interior and strong engine. What’s more, in entry-level sDrive23i trim, it’s something of a bargain.

3rd: Mercedes SLK
The SLK started the folding hard-top trend, but the competition has now caught up. There’s still a lot to like about the Mercedes, including its clever roof, smart looks and cruising comfort. Yet it’s let down by its uninspiring dynamics and disappointing pace.

Skip advert
Advertisement

New & used car deals

Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £6,761 off RRP*Used from £9,847
Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,429 off RRP*
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,326 off RRP*Used from £20,799
Volkswagen Polo

Volkswagen Polo

RRP £15,255Avg. savings £1,912 off RRP*Used from £7,299
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Dacia Spring EV updated for 2026, and it’s still got a tiny price tag
Dacia Spring facelift - front

Dacia Spring EV updated for 2026, and it’s still got a tiny price tag

The Dacia Spring has been improved for 2026, but a replacement could come soon
News
16 Dec 2025
New Renault Clio 2027 review: latest hybrid supermini is worth waiting for
Renault Clio Hybrid E-Tech - front

New Renault Clio 2027 review: latest hybrid supermini is worth waiting for

The Renault Clio isn't due to arrive in the UK until 2027, but we've already been for a drive
Road tests
16 Dec 2025
Inside Ford’s big comeback plan: Fiesta, small SUV, hybrid and VW relationship all explained
Ford Bronco Sport 2025

Inside Ford’s big comeback plan: Fiesta, small SUV, hybrid and VW relationship all explained

Exclusive analysis reveals Ford’s comeback plan: new Fiesta EV, hybrid crossover and working with Renault and VW
Features
11 Dec 2025