1972 John Player Special Lotus 72 Cosworth Ford F1 Grand Prix Car. That is Emerson Fittipaldi driving possibly my favorite F1 car ever. I was at Watkins Glen in 1971 for the USGP and watched him drive the Red, Gold and White version painted model 72.
The GK2G (Go Kart 2 Go) is a concept Go-kart by BEAU REID that can actually fold in half allowing the racer to chuck it safely in the trunk of a car. Reaching a high speed of about 60mph due to its low weight carbon fiber chasis and powered entirely by high output lithium batteries.