Maserati Quattroporte review - MPG, CO2 and Running Costs

Fuel economy for the V8 engine is a huge improvement over the old car’s 15.7mpg figure. With a smaller capacity and a couple of turbos, the 3.8-litre V8 manages 26.4mpg and CO2 emissions of 250g/km.

If you drive it hard though then expect that figure to fall dramatically. The V6 is not much better at 29.4mpg combined so the diesel is really the only option if you are planning many long journeys. It returns an impressive 45.6mpg and emits a tax-friendly 163g/km of CO2, making it competitive with the other diesels in the executive class.

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However, the 80-litre fuel tank won’t last that long on the petrol models and you’ll be shelling out over £100 to fill an empty tank.

As you would expect, insurance premiums are going to be sky high and servicing costs will be befitting of a car with a price tag of more than £100,000.

The diesel is a bit more accessible at £69,000 but with a long optional equipment list it would be easy to quickly send the price rocketing upwards.

Servicing is expensive as well, and Maserati only has around 20 dealers in the UK. 

Insurance groups

Due to its price and performance, you’ll be facing stiff insurance premiums for all versions of the Quattroporte.

Depreciation

Most big and expensive luxury cars suffer from brutal depreciation, but traditionally, big and expensive Maserati saloons have suffered more. This will be a concern for private buyers especially.

Our used car valuation experts CAP paint a pretty woeful picture of residual values after a typical three-year/30,000 mile period of ownership. The worst offender is the most expensive GTS model, which CAP predicts will retain just 28 per cent of its new price. Using the same prediction parameters, the V6 petrol will retain 35 per cent and the diesel model 37 per cent.

By way of comparison, the Mercedes-AMG S-Class should be worth up to 40 per cent of its new cost according to the CAP predictions.