Quite simply my reasoning is this -- no matter what I race, the first few seasons I am out there the car is going to be _WAY_ faster than the driver. That being said, I got both of these cars and an extra drive train for a GREAT deal. I also think that within my first three seasons there is a definite chance that I may ball the car up beyond recognition so having an extra chassis is not such a bad thing.
+ I have seen some of the recent races at Summit end up with 280s in second, third, etc. (no one is going to beat that dang beamer!).
I have a strong affinity for the RX-7, but the simple fact is that I can prep this 280 for less than the prep on my 7 for school -- plus the competition prep is roughly the same cost as making my 7 competitive.
So -- your not racing out there anymore? Summit will be my home track!