This car has been superseded by a newer model, click here to go to the latest Mercedes-Benz SLK Roadster (11-16) review.

Parkers overall rating: 4 out of 5 4.0

Miles per pound (mpp) Miles per pound (mpp)

Reliable fuel consumption data for comparison purposes is not available for this model.

Fuel economy

A more stringent standard for fuel economy (WLTP) was introduced from September 2017, and this model was not required to undergo that test. Its fuel economy measured under the previous test system was 24 - 31 mpg. However these figures are less likely to be achievable in real world driving and so should never be compared to another car's mpg which was measured under the newer, more realistic WLTP system.

Mercedes-Benz maintenance is expensive, but it’s essential if you want to keep its value. This will be repaid by strong residuals, even though it has just been replaced by a new and rather better model. Fuel economy isn’t bad, especially on the smaller engined, supercharged models.

SLK is a polluting model. With an average of 247 g/km CO2 across the range, its emissions are quite high for a sports roadster. It’s worth noting that the line-up does not feature any diesel models, which typically produce less carbon dioxide than petrol engines with similar power outputs. The range is quite thirsty, averaging 27 mpg.

It’s a Mercedes-Benz – build quality is peerless and reliability almost unrivalled. Especially impressive when you see that wonderfully complex folding roof mechanism working.

Ongoing running costs

Road tax (12 months) £295 - £360
See tax rates for all versions
Insurance group 32 - 37
How much is it to insure?