I guess you would take the weight of a '68 Convertible (likely available in the info from this site), and then subtract a few hundred pounds for the engine. You removing the transmission as well? Rear axle to be replaced?
Might I ask what kind of hybrid you were thinking of making this car? Most take extreme forms of electronics... (regenerative braking, gas/electric smart interaction, lithium-ion batteries, etc etc)
'68 Firebird, 350-4, 2 spd auto, triple black, Dlx Interior
