Parkers overall rating: 4 out of 5 4.0

Miles per pound (mpp) Miles per pound (mpp)

Petrol engines 3.0 - 4.3 mpp
Low figures relate to the least economical version; high to the most economical. Based on WLTP combined fuel economy for versions of this car made since September 2017 only, and typical current fuel or electricity costs.

Fuel economy

Petrol engines 22.8 - 32.5 mpg
  • V8’s quaff petrol like it’s going out of fashion
  • Manual 2.3-litre Ecoboost is moderately efficient
  • Long service intervals cushion the blow

What are the running costs?

As you’d expect from a big V8 engine, the Mustang isn’t particularly efficient. According to official figures, the automatic model is most efficient at mid-twenties mpg with the manual slightly worse. In our experience you’ll get slightly more than that when you’re cruising, although enthusiastic driving will see economy tumble well into the teens.

CO2 emissions are also predictably bad, with even the cleanest Mustang emitting over 250g/km. That’s enough to easily put it in the 37% BIK company car tax bracket and generate a hefty first year’s road tax bill.

If you are looking to save a few pennies, the 2.3-litre Ecoboost version that was available before 2021 is more efficient on paper, but not much more economical in the real world.

Servicing and warranty

You get a standard three year or 60,000 mile warranty with the Mustang, with the option to upgrade this to four years/80,000 miles or five years/100,000 miles for a fee. Servicing intervals are once every two years and fixed cost service plans are available.

Reliability

Being the first of its kind to come to Britain in significant numbers, there was no real benchmark for how reliable the Ford Mustang Fastback would prove to be. Pleasingly, the signs so far are good.
 
There’s just been one precautionary recall so far by the DVSA vehicle inspectorate, to counter a potential fire risk in V8-engined cars. This work should have been remedied on all examples by now, but check with a Ford dealer to verify.

Ongoing running costs

Road tax (12 months) £165 - £630
See tax rates for all versions
Insurance group 39 - 45
How much is it to insure?