Clarkson definitely makes great points about supercars and the like. Heck, even my M3 would take some effort to reach any limits on the streets (before the cops catch you soon after). I do take my M to the track where I do see most of its limits, but I go to the track maybe 0.2% of my total drive time of the vehicle.
Clarkson is dead on when he says people want a fast car, but they don't actually want a fast car. I've come to find that I would like a sporty, civilized daily driver, and, separately, a dedicated track car. The M3 borders very finely on the edge of too stiff of a street car. I've driven Formula Ford and Formula Renault race cars, so I know what stiff is.
I don't know that I'll be back to get a F80 M3. I may just end up with a 328i or an X1 lease, and buy a used 2011/2012 Mustang GT 5.0 and trick it out into a serious track car. It's a shame the M135i won't come to the US.