Cadillac BLS Saloon (2006-2010) running costs and reliability

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Running costs rating: 2.5 out of 52.5

Written by David Ross Published: 6 June 2019

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 26 - 49 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.

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The Cadillac brand is relatively new to the UK which makes predictions about its future residuals less certain, but it is not expected to perform any better than rivals from Saab and Alfa Romeo. A top spec diesel engined model would be the one to hold its value best. Servicing should be relatively affordable but bear in mind that you may face a lengthy journey to your nearest Cadillac dealer.

The BLS is quite a polluting model and with an average of 205g/km CO2 across the line-up, its emissions are a touch high. The greenest model is the actually the more powerful 1.9-litre diesel with 180bhp – it emits 151g/km of CO2 and returns 50mpg.

The Saab 9-3 which the BLS is based on has proved a reliable car on the whole with only a few minor problems on early cars. All the engines in the line-up have been well-proven in other GM cars.