BMW M6 Convertible

An extremely fast convertible

This is the average score given by leading car publications from 7 reviews
  • Fast
  • Nice interior
  • Refined with the roof up
  • Too expensive
  • Not as fun as rivals
  • Quite heavy

£98,215 Price range


4 Seats


27 MPG


Reviews for the BMW M6 Convertible are surprisingly unimpressive.

You might think there’s little wrong that a 550-horsepower BMW convertible can do, but several reviews suggest the M6 Convertible doesn’t really know what it is – it’s neither true out-and-out sports car, nor comfy cruiser.

And several reviews suggest it’s a little too expensive too – the hundred-grand price tag could get you some seriously impressive cars from other manufacturers.

The M6 Convertible’s interior is standard BMW M6, which is to say comfortable, well-built and just a little dour. The three-spoke sport steering wheel is a highlight, as is the use of subtle carbon fibre trim – the real stuff, rather than a stick-on vinyl affair.

There’s plenty of space for both driver and passenger up front, with adjustment in virtually every direction. The back seats aren’t really suitable for adults though, particularly when the roof is in place. That roof also cuts down on boot space a little, so the M6 Coupe and M6 Gran Coupe are the more practical M6 options here. Testers say that with the roof up it’s nearly as refined as the coupe though – quite an impressive feat. With it stowed, there’s a little buffeting even with the wind deflector fitted.

“Looking for a hardcore sports car? Keep looking” says one tester – and that more or less sums up the opinions of most of the experts on the way the M6 Convertible drives. There are few complaints about the quantity of its performance, but the nature of its performance is less impressive – it just doesn’t feel very special.

The good news is that there’s lots of grip, it rides well and the damping is well controlled. But it “merely feels very capable rather than captivating”, a little heavy, and not as alert or involving as rivals like the Porsche 911 or Maserati GranCabrio.

You only get one engine option in the M6 Convertible. Is this a problem? No – not only are other engines available in the regular 6 Series Convertible range, but the 4.4-litre twin-turbocharged V8 found in the M6 is a bit of a cracker.

There’s 552 horsepower on tap, and a hefty lump of torque – 502 lb-ft, to be precise – developed from just 1,500 rpm. That’s “from the bowels of hell” as far as one reviewer is concerned, and while the V8 engine note is more cultured than hellish there’s certainly masses of performance on offer – the 0-60 sprint is dealt with in just 4.3 seconds. When you’re travelling a little slower, the M6 also settles down to be a fairly refined cruiser.

These are general, non engine-specific reviews of the BMW M6 Convertible. They give you a good idea of what the car is like without going into detail on one particular engine or model.
As is often the case, the M6 Convertible's unimpressive review scores are little to do with its engine. Be in little doubt, the 4.4-litre twin-turbocharged V8 under the bonnet is one of the M6's better features.

Maximum power tops 552 horsepower and there's 502 lb-ft of torque on tap before. It summons up torque "from the bowels of hell", making the M6 a "devastatingly quick tool". Flat out you'll reach 60 mph in 4.3 seconds. There's an exciting exhaust note too, yet it's an "excellent" cruiser when you're not setting any speed records.

Value is an issue familiar to all the M6 variants. The Convertible slips in at just under £100,000, but you can get some truly exciting cars for that sort of money and the M6 doesn’t do well in comparison.

Testers say it’s technically better than some rivals, but when you’re paying a hundred grand for a car you want a little sparkle. Then there’s BMW’s own M5, at £20,000 less. Efficiency is reasonable, at least – 27.4 mpg combined.


If you’re interested in the M6 Convertible you may also be interested in the coupe version, the Gran Coupe or the M5 saloon. For some buyers, the M6 Convertible will be hugely appealing.

But in the cold light of day it’s a rather expensive way of going quickly even within BMW’s own range, and can’t compete on emotional appeal with rivals from Porsche, Maserati, Jaguar and even Mercedes-benz. It’s quick and superficially fun, but lacks the thrills you’d hope from a 550-horsepower convertible.