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 23 - 55 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.

The 159 will to hold its value better than the 156 and about as well as a Volkswagen Passat or Honda Accord, although not as well as an Audi A4. Alfa 159 running costs make reasonable reading, with the exception of the 3.2-litre, which is thirsty. All other models can do more than 30mpg and the diesels are especially frugal. Alfa servicing is reasonably priced, especially compared with the likes of BMW or Mercedes-Benz, but the dealers don't have a great reputation.

The 159 performs adequately in terms of CO2 outputs and despite being a sporty brand, there are even ECO models available. Powered by the 1.9 JTDM engine with power lowered to 120bhp (from 150bhp), they emit 138g/km of CO2 while returning 54mpg. So Alfa 159 emissions aren't bad, but they lag behind alternatives from BMW and Audi.

Don't expect bulletproof Alfa 159 reliability. The company claims to have improved build quality and cars we've driven so far were certainly free of any squeaks, rattles or problems. Time will tell, however, as historically, reliability was not an Alfa Romeo strength.

Ongoing running costs

Road tax (12 months) £155 - £600
See tax rates for all versions
Insurance group 18 - 30
How much is it to insure?