LEGO Exclusive Technic Grand Prix Racer 42000 2-in-1 model: Rebuilds into a Race Truck featuring independent 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 Measures over 4" (12cm) high, 24" (61cm) long and 9" (25cm) wide Motorize the Grand Prix Racer with 8293 LEGO Power Functions Motor Set (sold separately) Race Truck measures over 7" (19cm) high, 17" (45cm) long and 8" (22cm) wide