Which used Mercedes CLK coupe should I buy?
The four-cylinder engines become coarse at high revs, and even the V6 can sound strained when you work it hard. However, they're all quiet when cruising, and the CLK cuts out wind and road noise well.
Overall, the V6 offers the best blend of performance and running costs, and acceleration is effortless with it or the 4.3 V8 - and simply incredible with the 5.6 AMG. The only slowcoach is the non-supercharged 2.0-litre unit, but both the Kompressor engines are reasonably brisk.
Whichever model you go for, try to find one with the excellent automatic gearbox, which is standard on the V6 and V8. The manual is clunky and frustrating.
The hairy 5.5-litre 342bhp AMG version was designed to take on the BMW M3. And, although it had the performance - 0-62mph in 5.1sec - it fell short of this ambitious target.
Every model comes with plenty of comfort and safety features, but it's worth avoiding pre-1998 cars, as they didn't come with standard air-conditioning.