Pick from engines ranging from 1.6 to 2.8 petrols and 1.9 to 2.5 diesels.
The mid-rangers flatter the car's talents best, so go for the 1.8 petrol or two 1.9 turbodiesels, and preferably the 110bhp rather than the 90bhp version. Need more power? Go for the punchy 1.8 turbo, or the six-cylinder 2.8, both of which come with front- or four-wheel drive.
All A4s came with plenty of equipment, inlcuding twin airbags, anti-lock brakes, central locking and electric mirrors and windows. Side airbags became standard from 1997.
To be sure of desirables such as alloy wheels and climate control, you need the SE. Step up to Sport and you get more contoured seats, a three-spoke steering wheel and extra instruments. Of the three trim levels, SE is by far the most common and the best.
Hunt down a quality independent dealer specialising in Audis. Auctions throw up bargains, but bid only when you're satisfied that the car's sound and straight.
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