Your car will not be any quicker at all, do not ditch it or youre in trouble when you get a puncture. Tyre weld is absolute puddie.
If you are that anal to save weight, only have a gallon of petrol at a time in the tank and race between each filling station, you save 30 kilos over normal, but fill up half a dozen daily.
Even better, fit a remote unit to the cliosport so you do not have to actually sit in the car, and you can control it from another car behind.
Finally when in bed with the female, you can remove your foreskin and one testicle ( you only need one ) to save weight, it is called "cliocupsex" in the trade, that should make you cum faster than if you had your foreskin and extra testicle, which is known as the the "full172experience". Following me?
Bye Bye