Darda Racing Porsche 918 Spider DARDA Porsche 918 Spider racing car with plastic body, length: 9 cm. Every DARDA car is compatible with every DARDA playset and every engine can be exchanged. All of Darda's windup race cars are powered by their exclusive, amazing spring coil "Mega Motor". The mega motor propels the model cars at up to 30mph, over distances of 75 feet (this is a scale speed of over 600mph!). The 'Mega-Motor' cannot be over wound, and requires no batteries or electricity. It is wound by pressing gently on the car and moving it backwards and forwards. Packed in a windowbox with header and product information.