As we were in Munich late last week poring over the spec for the new 6-series coupe BMW quietly revealed to PH (possibly accidentally) that all-wheel-drive will be coming to UK-spec saloon and coupe BMWs - including the 6-series.

But although the xDrive BMW 650i coupe will go on sale (in the US at least) later this year, we'll have to wait a little while (and BMW won't say how long) before we get the option of four driven wheels on Blighty-bound 6-series models. Oh, and don't worry, BMW hasn't given up on good ol' rear-wheel drive just yet - its xDrive offerings will be 'in addition to' rather than 'instead of'...

What we do know is what the M sport package will be like, when the car goes on UK sale on 15th October this year. For £4665 (or £4500 for the 650i M Sport) more than the standard 6-series coupe (which in 'base' 640i spec costs a not insignificant £59,550 anyway) you get new 19in alloys (20in on the 650i), chunkier bumpers and side skirts, dark chrome exhausts, an M Sport steering wheel and sports seats.

BMW has also announced the spec of its oil-burning version of the 6-series coupe, the 640d. Expected to make up 90 per cent of UK 6-series sales, the twin-turbo straight six provides a pretty thumping 309bhp and 465lb ft of torque. this is good enough for 0-62mph in 5.6secs and the inevitably limited top speed of 155mph, whilst the 640d only gobbles a gallon of diesel every 51.4 miles on the official combined cycle (yes, we know this isn't What Car?, but that really isn't bad going for such a big, fast car)...