I would personally love to see a range of old british fords, escort2,3,4, Cortina 3,4 and capri 2,3 would be my favourites, as i used to own the 1:1 versions in my youth. Probably not enough interest to make the moulds worthwhile though! Dunno about the aerodynamics of the shells either, the MK 4 cortina was shaped like a brick!
cheers
neil