Electrical generator driven off the engine which drives electrical accessories and charges the battery.

An alternator generates alternating current (AC) which is turned into the direct current (DC) needed by the electrical system using a rectifier pack.

Alternators replaced dynamos in the 1960s/70s.

An accelerator pump is fitted to some carburettors to deliver a squirt of extra fuel when the throttle is opened suddenly, giving better response.

An A-segment car is a small car, usually a three-door hatchback like the Ford Ka, Peugeot 107, Citro├źn C1 and Volkswagen Fox. They are often described as 'city cars'.

A-segment cars are smaller than supermini (B-segment) cars like the Ford Fiesta, Vauxhall Corsa and Renault Clio.


The A-pillar is between the windscreen and the front door.

A-pillars are a key component in the strength and crashworthiness of a car body.

Compare B-pillar, C-pillar, D-pillar