My M6 developed a thirst for oil at just 1,800 kilometres and used an average of 1 litre of oil per 1,000 kilometres until BMW agreed to replace the engine. A combination of having to stop every 1,000 kilometres to top up the oil and a faulty tyre pressure indicator made BMW's fastest convertible actually slower on trips than my daughter's Smart ForTwo. Add to this the fact that BMW Australia apparently don't stock parts and the fact that you can't buy tyres for them and you've got a car that reminds me of the old Jaguar joke that you need to buy 2 of them so you'll always have 1 to drive while the other one is in being fixed.
I purchased my 2007 BMW M6 Convertible about 10 months ago. I decided to hold off on submitting my review until now because I like to form a close relationship with my vehicle before singing its accolades. Well, all I can say is that this car has exceeded all my expectations. It is simply the best car I have ever owned, bar none. The car is an absolute blast to drive. For the first time, I actually look forward to getting up in the morning to drive the 20 miles to my office. Same applies to my drive home from work. The V10 engine is sublime. The handling is confidence-inspiring. The build quality is second to none. As far as the iDrive and SMG are concerned, I love them both.
The 500HP V10, the 'Power' button, the suspension, the iDrive system. Anyone with basic knowledge of how to use a computer will have absolutely no problem with the iDrive. I love using it.