Because the cost to run a CC is about $2500 a day. Tires for the CC are around $1600. and they are garbage after 3 or 4 heat cycles. Meaning if you go out for 4 20 minute track day sessions, they are hard as a rock and dangerous. It takes at least two people to run one. Engines have a 35-50 hour max life so you can figure $500 per hour run time for the engine. That does not include transmission, clutch, etc. There are 10 hour suspension replacements- averages another $100 an hour. If you go to the Comp Coupe section, everyone there figures $5000 minimum per weekeknd to run in VRL- and that is only going out to qualify once, two pracitve sessions, and two 50 minute races- So around $1000 per hour....
Tires $1400. We use one set per weekend. About 5-6 hours of track time. We usually ditch them after about 10 heat cycles.
We do work hard to prepare the car - but don't think that it takes 2 people.
PLEASE do not tell my 65+ hour motor that he hsould have been rebuilt twice by now. Thanks. Or - my original transmission....
We've replaced some suspension stuff and have some more to do - keep the car off the curbing and on the track and it will last WAY longer than the specs in the CC manual. Also - torque the center hubs too 300 ft lbs frequently and many of the suspension issues go away.
And yeah - $5K per weekend is about right - but that's everything for us - travel, fuel, fees, tires, etc.
The car is VERY reliable and really shouldn't be that much more to run as an open track car - it's a very similar car - engine, brakes, suspension, etc. And if you are going through tires, brakes, trannies, motors, suspension,etc on a CC, - you'll do the same on a street car - maybe more - because you don't have things like brake cooling, tranny and diff cooling, etc.