The Peel P50 is the world’s smallest and ultra-compact car. The P50 is powered by a 3.35 hb engine, with a CVT transmission. It’s electric version, too, have nearly the same specs. The P50 has an electronic speed limit of 30 mph, and cant do 60 mph.Engineers had to work hard because how how compact and small the car was, and in the end it worked out because its the slowest car in the world