Originally Posted by Bavarian Motorist
You gotta ask where this weight is coming from.
So you can leave the car without the touring pack and save 15 lbs.
You can't really lighten the wheels or the exhaust because they're both very, very light as it is (yes, even the Exhaust).
A CF roof could shed 10-12 lbs. A CF engine lid or lighter engine lid? That engine lid is heavy...
Battery? How much weight can you really shed from that?
There really is no weight to be shed anywhere else while keeping the car streetable. I highly doubt they'll use a lot of CF because it is expensive. I am extremely skeptical about all this weight-savings talk...That must be related to the Cup Car.
Lets add this up:
Exhaust = 10-15 pounds. Perhaps more if you are creative
Panel = 5 pounds. Eliminate
Battery = 10-15 pounds
Stereo with speakers = ~15 pounds (estimate)
Side mirrors = 1-3 pounds
Seats = 10-15 pounds (very expensive to do, though)
CF Access panels = 5 pounds?
CF top = 5-10 pounds
CF wing - 5 pounds??
CF clams/doors = 50-100 pounds (very expensive, although perhaps not so bad when economies of scale are factored in. Does CF require more labor than fiberglass?)
Wheels = Maybe 5 pounds, but they're already feather weight.
Fuel tank = how much weight is saved there???
200 appears possible if you add all that up, but I would have a hard time thinking there is less than $10k in materials there.