Porsche Macan review - The SUV that wants to be a sports car - MPG and running costs

The Macan S Diesel is easily the most economical car in the range, returning 44.8mpg on the combined cycle with 161g/km of CO2. This will see you pay £500 for VED in the first year and £140 a year thereafter, though due to the Diesel's list price of over £40,000, it will also attract a £310 supplement for the first five years.

No Macan will escape this £40,000-plus supplement, in fact, unless Porsche decides to be clever with its pricing in the years ahead. If it does, the entry level four-cylinder Macan may be the biggest beneficiary, though with 171g/km of CO2 it's in the tax bracket above the diesel, for £800 a year and £140 a year (plus supplement) thereafter. In purely economical terms, the 2-litre car can muster 38.7 mpg.

The six-cylinder Macan S drops to 32.1mpg and 207g/km and if you opt for the Macan GTS, also six of cylinder and turbocharged of aspiration, you get identical figures. Given the other two models in the Macan range - the Turbo and the Turbo Performance Package - are also six-pot but boast slightly larger engines, it's little surprise to hear they deliver slightly lower economy figures and higher CO2 numbers: 31.7mpg and 30.1mpg for the Turbo and PP respectively, with 208 and 217g/km of CO2.

Real-world figures are more in the mid 20s for the Turbo for day-to-day driving, with a Macan S hovering around 30mpg in similar conditions. The diesel is better still.