LEGO City F1 Truck with RB20 & AMR24 F1 Cars 60445. The streamlined low-profile trailer includes space for an F1 simulator and a double vehicle compartment with opening side panels. The rear gate opens and ramps pull out to load the RB20 and AMR24 F1 cars. The 1,086-piece truck and trailer measures approximately 9 cm high, 44 cm long and 7 cm wide.