We've covered this MANY times on UCP, a wee search would enlighten you.
To summarise .... weight has NOTHING to do with safety of the car you are IN.
European and Japanese "lght" cars are faring best in NCAP tests
Currently the severest in the world
That's because in the US you don't get to hear about 95% of the cars in Europe and Japan.
There were LOTS of reasonably priced sportscars in Europe.
When I think what you could buy an Alpine A110 for it makes me cry now
and then end up in the ditch on the first corner.
There is more to cars than accelleration
erm, as I remember it the real muscle cars did 8-12mpg.
(