i think the amount of time you spend at a track is really irrelevant. especially as a percentage of all your driving.
if you buy a peformance car, you expect a modicum of performance. and while i can understand an argument the these are luxury cars i would say that they are performance cars first and luxury cars second. the more plebian models are luxurious enough, and dont pretend to have sporting ambitions.
but in this case, since we are talking about sporty cars, the handling of a car at a track is pretty important. we can easily establish that these cars a fit to be driven on regular roads without jarring your head on every bump. they do have somewhat compliant suspensions and err on the side of understeer. so they are street machines.
but when you can marry a docile street machine and a fierce track warrior then surely you have the best of both worlds. and thats what this is about. if the bias of suspension tuning they perform for the track doesn't detract from its street performance, we have a winner. if the engine tuning doesnt mean the car stalls at low speed and full lock, bamm. (as emeril would say!)
you could say its kinda like all the 4X4 suvs and trucks out there. they dont have four wheel drive because they go four wheeling every weekend. nay, they might go once or twice in three years. but anytime they feel like it, they can.
i know there have been days when i got off work after only a coupla hours and just killed a tank of gas hooning through the mountain roads and canyon passes while some poor souls were drudgingly doing their work. i didnt have to go to a track, but had great fun nonetheless. thats where the track biased tuning comes into play.
i specifically remember going the long curvy way to our end of season party for our rugby club. i got held up by some slow traffic and doodled along behind em until icould pass, then i had my fun. that drive would have been eniterly forgetable if id been driving a minivan or suv.