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Porsche Boxster Roadster (1996-2004) running costs and reliability

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Running costs rating: 4 out of 54.0

Written by Parkers Updated: 11 May 2023

Miles per pound (mpp)

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

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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 25 - 29 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.

View mpg & specs for any version

Boxster has some of the strongest residual values going and fuel consumption isn’t bad. Expect insurance and servicing to be expensive.

Boxster performs badly on the eco front. With an average of 256 g/km CO2 across the line-up, 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 26 mpg.

Probably the only time you’ll visit your dealer will be for servicing and to have it resprayed after someone has keyed the sides.