Parkers overall rating: 4 out of 5 4.0

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

Petrol engines 5.1 - 6.9 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 23.9 - 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

Ford Mustang Fastback: what will it cost to run?

If saving cash is your priority, then the 5.0-litre V8 Ford Mustang Fastback has running costs that will make for some depressing reading.

Stick with the manual and the claimed average fuel consumption is 20.9mpg, so expect a real-world figure in the high teens. The automatic’s better, but still only 23.5mpg officially. If you’re mainly doing motorway driving, you could see a figure of about 25mpg but it’ll soon drop once you’re in town.

Things are more agreeable with the 2.3-litre Ecoboost with a claimed average of 35.3mpg with a manual gearbox. There’s a step down with the automatic, though – just 28.8mpg.

Facelift cars fare slightly better

For the updated 2.3-litre Ecoboost Ford claims average fuel economy of 31.4mpg for the manual, and 30.7 for the 10-speed automatic. The 5.0-litre V8’s consumption is 22.8 and 23.3mpg respectively.

Also keep in mind that the V8 will eat through rear tyres thanks to its Line Lock and Launch Control systems, and replacement rubber for 19-inch rims doesn’t come cheaply.

At least there’s some good news regarding scheduled maintenance: only expect to visit your dealer every two years or 24,000 miles for a service.

Residual values are decent at around 55%, although the automatics are slightly ahead of the manual Mustangs.

Ford Mustang hybrid coming soon

In 2020, a hybrid Mustang will join the range that should offer much lower running costs thanks to electrical assistance. 

Ford Mustang Fastback: is it eco-friendly?

Depending on which Mustang Fastback you choose, the Ford’s emissions levels range from acceptable to making you suck air in through your teeth.

The best – or least bad – on offer is the 2.3-litre Ecoboost with a manual gearbox. Here you’re looking at CO2 emissions of 179g/km.

At the opposite end of the scale, the 5.0-litre V8 – also with a manual transmission – churns out 299g/km of CO2, making it one of the highest-polluting new cars on sale.

Facelifted Mustangs

Post-2018 facelift cars can expect slightly worse CO2 output for the 2.3, at 199g/km for the manual and 205g/km for the automatic. The 5.0-litre V8, however, emits 277g/km as a manual and 270g/km as an auto. So it’s slightly better, but not by much.

Those looking for a less-polluting Mustang should wait until the hybrid version arrives in 2020. 

  • Mustang maladies have been limited so far
  • Ford’s been building V8s for almost a century
  • Technological parts shared with numerous cars

Ford Mustang Fastback: will it be reliable?

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.

Ironically, Ford’s been building V8 engines for itself, and supplying to plenty of others, for decades, so it’s reasonable to assume that’ll be close to un-burstable.

The cabin isn’t overflowing with soft-touch plastics, so while it may not feel like the most luxurious interior in the class, it does at least appear hard-wearing. And the Sync2 and Sync3 infotainment systems are used throughout the Ford range, and haven’t caused any problems so far.

Ongoing running costs

Road tax (12 months) £150 - £580
See tax rates for all versions
Insurance group 39 - 45
How much is it to insure?