Toy building set

A toy building set comprising building elements with at least two side walls that define a width for the building elements and a top face with coupling studs arranged in parallel rows on the top face such that the rows are spaced apart. The building elements have a bottom with a cavity for receiving coupling studs on other building elements. The toy building set comprises a toy vehicle with wheels that are mounted in pairs on opposed sides of the vehicle. The wheels in each pair are arranged at such distance from each other that there is room for an integer multiple of rows of coupling studs between the wheels, and that both wheels in a pair can simultaneously be in rolling contact with a top side of the building element. A toy vehicle for such building set has its wheels in each pair arranged at such distance from each other that there is room for an integer multiple of rows of coupling studs between the wheels, and that both wheels in a pair can simultaneously be in rolling contact with the top face of a building element.