8865 Test Car is a TECHNIC set released in 1988. It contains instructions for two models: a sport car (the "Test Car") and a jeep-like vehicle. The main model features a host of realistic details like a functional V4 engine with moving cylinders, working 3-speed-transmission with different gear ratios, working open rear differential, rack-and-pinion steering, and 4-wheel independent suspension, as well as flip-up front lights and adjustable seats. This was the most accurate-to-reality model Lego ever produced.