LEGO Speed Champions | Back to the Future Time Machine 77256. Build the first-film version with lightning rod and California plate, then rebuild it as the flying Part II version with Mr. Fusion, orange plate and fold-down wheels. Includes rear vents, cockpit, flux capacitor, time circuits and Doc Brown and Marty McFly minifigures. Measures approximately 10 cm high, 17 cm long and 7 cm wide.