05 Feb 07
BMW engine technology for the cylinder head. The intake air charge is varied according to the valve openings, rather than from a throttle. Improves response times as well as efficiency.
Valves control the flow of air/fuel mix into the engine's cylinders and the exit of the exhaust gas at the end of the combustion cycle. Variable valve timing indicates a sophisticated electronically controlled system that precisely adapts the amount each individual valve opens, and how long for, according to the driving style and demands from the throttle.
A Lexus system that monitors and co-ordinates steering, suspension and braking to ensure optimum responses - in addition to helping to keep you out of a crash. Can automatically make steering and braking inputs according to situation. Less obtrusive than most traction control systems, which merely cut engine power, and has a positive impact on handling.
A 17-digit alphanumeric code stamped on the vehicle, usually on the engine, which contains information about when and where it was built. Should tie up with the numbers quoted on the car's registration document (V5) and stamped elsewhere into the chassis.
A type of simple mechanical differential for four-wheel drive where torque is diverted from one axle to the other according to grip - as used in the Fiat Panda 4x4, though such systems are also used in high-performance sports cars like the Porsche 911 Carrera 4S and Lamborghini Murcielago.
