World's smallest roadworthy car is 63.5 centimetres tall
The world's smallest roadworthy car has a height of 63.5 centimetres, a width of  65.41 centimetres and is 126.47 centimetres long, as per Guinness World Records. The car is licenced to be driven on public roads with a speed limit of 40 km/h. Created by Austin Coulson from the US, it was measured in Texas on September 7, 2012.