05 Feb 07
BMW's control system for non-core functions such as hi-fi, sat nav, ventilation/air conditioning, seat position and phone, using scroll-down menus, a large dial and buttons all in one computer-style unit. Similar in concept to Audi's MMI and Mercedes' COMAND, but has become a byword for overcomplexity.
The system that creates and controls the timing of electrical sparks which ignite the air/fuel mixture in the engine.
Each wheel is sprung separately, so if one hits a bump it doesn't affect the others. A system used in most modern road-going passenger cars, especially at the front. Makes for a smoother ride and better handling. See also Live axle.
A combination of the ignition and alternator into a single unit. More efficient and reliable, it allows for a system further combined with, for example, Stop-Start and regenerative braking technologies for fuel-saving. Can drive a small electric motor, as in so-called mild hybrids, to supplement the engine power.
A standardised system of fixing points to anchor child seats into a car. Now standard in most family cars and other models, it enables the safe use of compatible child seats. [See also: Child seat]