That was a beautifully eloquont statement about the 540. I have to agree with 328isRob, the M1 is the definitive BMW for performance.
I do have to say that is a car that blends performance and luxury better than the 5, and that is the TVR Cerbera. The Speed 6 Cerbera is the most comfortable, then the 4.2, which makes an excellent tourer. The 4.5 is capable of mind blowing performance, with 18" wheels and a LSD as standard equipment, while still remaining civil in traffic, and comfortable for long trips.
The BMW is a bit more comfortable though
[img]
http://www.tvr.co.uk/graphics/cerber...45_sidelge.jpg
[/img]