This car has been superseded by a newer model, click here to go to the latest BMW Z4 Roadster review.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 29 - 38 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.

This is a sports car but running costs aren't as bad as you might think, especially if you go for the 2.0-litre version which offers the best bet with decent economy of 38mpg. However insurance isn't particularly cheap and nor are tyres - plus if you get it serviced at a BMW dealer be prepared for a hefty bill.

The Z4 performs fairly badly on the eco front - no surprise considering it's a sports car and with an average of 209g/km CO2 across the model line-up it is not for the green-minded. The best model is the 2.0-litre which emits 176g/km of CO2 and can return 38mpg.

The Z4 has proved to be reliable and uses much of the technology found on other BMW cars. BMW's reputation for quality and durability is well founded so there should be few problems with the Z4.

Ongoing running costs

Road tax (12 months) £265 - £330
See tax rates for all versions
Insurance group 37 - 45
How much is it to insure?