Jeep Grand Cherokee SRT-8 (06-10) - Review Review by Ben Wall on 08 December 2006 Last Updated: 12 February 2009 Jeep's high performance version of the Grand Cherokee, badged SRT-8, is produced in very limited numbers, making it a rare 4x4. With a hugely powerful V8 engine along with heavily modified suspension and steering, it's thunderously quick with 0-62mph coming up in just five seconds. However, it loses all of the regular Grand Cherokee's impressive off-road capability. That may make it seem rather pointless to most potential buyers, but the fact that it can out accelerate a Porsche Cayenne Turbo S - for half the price - ought to tempt some. But considering the sky-high running costs, it seems a pointless extravagance. 3.5 out of 5 Other Jeep reviews Summary Facts & Figures Equipment Driving & Performance Comfort Costs Safety & Reliability Buying & Selling Also Consider Company Car Info Owners' Reviews Gallery 2 out of 5 Running costs It's no surprise that running costs are incredibly high for the SRT-8. It sits in the highest road tax band, averages a woeful 18mpg and is group 19 for insurance (the highest is 20). Jeep servicing is fairly reasonable, but the SRT-8 requires maintenance every 7500 miles, compared to 12000 miles for the standard CRD model. However, it costs far less than other similarly high performance 4x4s and is well equipped too. Summary Running Costs Servicing period Every 7500 miles. Warranty Three years/60,000 miles. Road tax (12 months) £475.00 - £475.00 Vehicle excise duty (VED) varies according to the CO2 emissions and the fuel type of the vehicle. For cars registered after March 1st 2001 VED or road tax is based on the car's CO2 emissions. For cars registered before March 1st 2001 it is based on engine size. Full running costs data 0.5 out of 5 Green credentials < 100A 101 - 110B 111 - 120C 121 - 130D 131 - 140E 141 - 150F 151 - 165G 166 - 175H 176 - 185I 186 - 200J 201 - 225K 226 - 255L 256+M380 CO2 emission figure (g/km) Fuel economy rating The arrows indicate the best and worst CO2 bands for this model. Emissions summary With its large 6.1-litre V8 petrol engine and a fuel consumption figure of just 18mpg, it's no surprise that the Cherokee SRT-8 performs very badly on the eco front. It emits 381g/km CO2, which is high compared to an average family car but just as polluting as the Land Rover Range Rover Sport 4.2 V8 and Porsche Cayenne Turbo. Fortunately, these high-power versions are less prevalent on the roads than greener alternatives. Find the exact engine and CO2 Car Valuations Find used car prices with Parkers accurate car valuations. Find out more Cars for Sale Search well over a hundred thousand new and used cars for sale across the UK. Find out more Previous: Comfort Next: Safety & Reliability