LEGO Technic 42000 Grand Prix Racer 2-in-1 model: Rebuilds into a Race Truck featuring front and rear wheel suspension, engine with moving pistons, opening hood and adjustable rear wing Features opening engine cover, independent all-wheel suspension, V8 engine with moving pistons, adjustable rear spoiler and realistic steering Show off the engine! Adjust the spoiler! Motorize the Grand Prix Racer with 8293 LEGO Power Functions Motor Set (sold separately) Measures over 4" high, 24" long and 9" wide ; Race Truck measures over 7" high, 17" long and 8" wide