Choose from the quick 3.0-litre V6s (SL300 and SL350), a pair of super-quick V8s (SL500 and SL63 AMG) or the downright ballistic V12s (SL600, SL65 AMG). Power outputs range from 228bhp to 603bhp in the tyre-shredding SL65 AMG. All engines are smooth and free-revving, but the gearshifts can be jerky when pushing to the maximum.

The V8 and V12 models feature Mercedes’ Active Body Control suspension, which counteracts body roll and offers two settings. In ‘comfort’ mode, the ride is smooth and even, and ‘sport’ further hones the SL’s impressive agility and handling. The V6s’ less sophisticated steel-spring set-up is almost as well-controlled, though the ride is less forgiving. On every model, the steering is fluid and well-weighted, with a direct-steer system – which sharpens responses – optional in non-AMG models.

When raised, the metal roof ensures that the cabin is a haven of peace and quiet. Engine noise is suppressed to a burble – although the AMG models are obviously more raucous – and road noise mimimal. Roof-down, occupants can talk without shouting, and with the wind-blocker and side windows up, there’s very little buffeting.

Prices start from around £60,000 and rise to more than £150,000, so SL ownership doesn't come cheap. Running costs are also high, but you'll get reasonable protection for your investment, because resale values are solid. Expect to recoup around half of what you paid after three years.

The SL's interior is one of one of Mercedes' oldest designs, but in terms of immediate appeal and quality, it’s one of its best. The cabin demonstrates Mercedes' plushness at its finest, with beautiful materials, rock-solid controls and flawless assembly. Reliability should not be an issue.

A strong structure, the latest electronic braking and traction aids, an array of airbags plus a roll-over bar (which springs into place automatically) give the SL a hugely impressive safety armoury. The absence of deadlocks is a major omission, however.

The SL is plush and comfortable, with well-shaped seats. Absolutely everything moves electrically, so you literally only have to lift a finger to adjust it. The wealth of standard equipment makes the dash look busy and will take time to master, but everything is sensibly placed. Some drivers may feel that the long bonnet and wide cabin make the car feel big on the road.

The SL is a two-seater, but there's supplementary luggage space behind the seats and a host of hidden storage places. The clever roof allows for a decent boot, even with the top down, and the whole lid lifts up to give you access to your bags without having to raise the roof completely.

At these kind of prices, you expect lots of kit and the SL delivers. Nearly everything you could want is standard, including satellite navigation, leather upholstery and electrically-adjustable seats and steering wheel. Packages are available to help you personalise your SL, while options include Mercedes’ Airscarf system, which blows hot air through the head restraints to keep you warm when the roof's down.