I like the leveled discussion with several interesting viewpoints. Have some comments on different points being brought up.
Trunk floor:
Someone asked whether the trunk floor of the CSL was really cardboard thus not useable? Cardboard is Jeremy Clarkson's humorous was of saying it's special lightweight material. The technical name of the material is paper-honeycomb sandwich. It's used in aircraft industry a lot and is quite strong. No problems with the shopping bag.
Actually there are several lightweight materials used intelligently where it really makes a difference to keep the costs low as opposed to going Carbon Fiber everywhere.
Sport Auto vs Factory:
The interesting thing about Sport Auto tests, in addition to them taking this seriously and being objective that the same driver (H. v Saurma) drives all the cars eliminating driver bias. When you compare factory times, you will always have some bias.
Semi-slick Tires:
Semi-slick cup tires is believed to make about 4 sec difference at the ring. Note that many other hard core sports car are also tested with that tire. There is always the debate whether this is fair or not. IMO if it's standard on the car, it is. Otherwise, you can argue that the ceramic brakes are not fair as well if you see my point.
Reliability:
All BMWs have the same warranty and the CSL is not less reliable than other models. I know people who had driven their CSLs more than 10K Km on the ring. Of course the wear and tear is higher on hi-revving, fast cars compared family cars.
More HP etc.
Like anything else in life, there is no perfect car. They're all compromises of some sort. CSL comes from a sedan coupe. Seats 4 people comfortably and does a good joob as a sports car. Some other cars, are designed as two seaters, with less or no luggage space etc. It all depends on what you expect/need in a car. Different strokes for different folks.
For those asking for more power, 360hp is more that what most people can effectively use already. I really would like to see a trend to reduce car weight instead of increasing HP. A 1200Kg 300hp car is much more interesting and fun than a 1700Kg 500Hp car.
Best Regards,