BMWs top of the line convertible is a fine piece of engineering offering exceptional handling, elegant looks and a fine interior. The previous BMW 6-Series Convertible was an excellent car, but wasn’t as handsome as competitors from Porsche and Mercedes. The 2011 released car cleaned up its act on this count as well as making general improvements all round.
The 3 litre BMW 640i Convertible has a twin turbo charged straight six cylinder engine that comes close to the V8 650i on performance while maintaining an admirable fuel economy. Fast luxurious and comfortable; for an every day use sports car the BMW 640i Convertible is very hard to match.
The BMW 650i benefits from a mighty turbocharged V8 giving it ample power and masses of torque not to mention a stirring soundtrack. Fuel economy is and emissions are not as responsible as that of the 640i but it still doesn't drink like a supercar. The driver of a BMW 650i Convertible has much of the performance and refinement of Bentley or Aston Martin without being quite so attention grabbing.
If you thought the petrol 640i was frugal, the diesel BMW 640d that was added to the 6-Series range in 2012, is in another league. The 3-litre turbocharged engine has ample power and massive torque low in the rev range making it an impressive performer. A very impressive all round luxury grand touring convertible car.