Parkers overall rating: 3.5 out of 5 3.5

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 20 - 20 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.

Fitting a large 4x4 with a 6.4-litre V8 engine means that Jeep Grand Cherokee SRT running costs are extremely high in almost all areas. Not only does it sit in the top band for road tax, but with an average fuel economy figure of just 20.1mpg you can expect to get on first-name terms with the staff at the local fuel station. It also falls in to group 50 for insurance, the highest band possible.

The economy figure is the most disappointing when compared to the likes of the Infiniti FX and BMW X5, though insurance prices are similar and competitive compared to other performance 4x4 cars in this sector. Servicing costs are reasonable, however.

There’s no hiding the fact that Jeep Grand Cherokee SRT emissions are high at 328g/km. While this figure may look ridiculous in isolation it is, however, competitive against the rivals in this end of the new car market. It is an improvement over the previous car’s 381g/km, but doesn’t change things in terms of road tax bands and therefore annual costs.

It remains in the top band for both of these and will cost a hefty sum each year to keep it on the road.

Jeep products tend to stand up to the tough tests of off-roading, and there’s no reason why the Jeep Grand Cherokee SRT reliability record should be any different to this. The previous model appeared to be problem-free and this version should continue that trend. There are a number of new features that are new to this model - including the engine - so it may take some time before we know how well all of these live up to the wear and tear of daily motoring.

Ongoing running costs

Road tax (12 months) £490 - £600
See tax rates for all versions
Insurance group 50
How much is it to insure?