Modern F1 cars are surprisingly long, for example the Sauber F1 web site says their 2012 F1 is 5195mm long (a bit over 162mm in 1/32)
OK nobody makes a slot car body yet, but I guess the idea is to be sure cars you might buy in the future cars will fit your car box.
OK nobody makes a slot car body yet, but I guess the idea is to be sure cars you might buy in the future cars will fit your car box.