By on September 30, 2016

2016 Ford Mustang GT convertible

Throughout its life, the Mustang GT has been called many things, from sexy, to speedy, to downright stupid — but never has it been called a fuel sipper. Ford UK doesn’t seem to care.

For the UK’s annual fuel economy challenge, one of Ford’s entries will be the 410-horse Mustang GT convertible, which is rated for an optimistic 20 miles per gallon in Great Britain.

“The great thing about the MPG Marathon is that it’s as much about driving style as it is about eco vehicles,” said event organizer, Jerry Ramsdale.

“By entering a car like the Mustang and showing the world how much the crew can improve the fuel economy over the standard MPG figure, Ford is demonstrating how even the most performance-oriented of cars can be fuel efficient if driven in a responsible, eco-friendly manner.”

It’s not like Ford is having trouble selling the GT in Blighty – two thirds of the Mustang’s 3,000 UK sales have been optioned with a 5.0-liter V8, making it the nations best selling high-performance car.

“A high power rating need not necessarily mean excessive fuel consumption – as this year’s MPG Marathon is set to demonstrate,” said Kevin Griffin, Ford of Britain sales director.

Staffing the Mustang will be former Ford works rally pairing of Andy Dawson and Andy Marriott, stacking the deck further, the duo previously won the 2012 MPG Marathon piloting a Ford Fiesta ECOnetic 1.6 TDCi.

The pairings are tasked with plotting their own routes to four different checkpoints across the country, including a jog up to Silverstone International. The aim of the MPG Marathon isn’t just an obvious sky-high MPG score, prizes are also awarded for significantly beating the manufacturer’s estimate – which is where the Mustang will look to put on a perception shifting, parsimonious performance.

Based out of Heythrop Park Resort in Oxfordshire, UK, the 2016 MPG Marathon gets underway on October 18.

[Image: Ford Motor Company]

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19 Comments on “Ford UK, Always the Optimist, Enters Mustang GT in MPG Marathon...”

  • avatar

    I have never averaged less than 20 mpg with my daily driven M6 3.73 geared ’16 GT. It’s a very sensitive car in terms of how you drive, and 90% of the time I short shift. Interstate highway travel returns 24-25 at 80mph. And state highway with speeds-closer to 65 will net 26-27 MPG. It’s a rewarding car to hypermill as it manages fine on torque, with an occasional bout of hooliginism as a reward. Previous N54 and N55 (E82-F20) BMWs were less sensitive to how driven and netted 3-4 MPG’s better by comparison, albeit less powerfully.

    • 0 avatar

      Granting a V6 isn’t the same as a V8, I regularly exceeded 32 highway mpg in a ’96 Camaro simply by staying within the speed limits on the Interstate. Ford’s point is very valid; how you drive the car is just as important as the engine/tranny combo when all else is the same. Heck, I’ve even managed a 25mpg average with a JKU Wrangler (pre-Pentastar) on the Interstate over a 700-mile run while still passing cars traveling slower than me (cruise control set at 62 for most of the distance.)

    • 0 avatar

      I’m gonna get a bumper sticker that says “Born To Hoon”– just to annoy the Aussies and the researchers at Monash University.

    • 0 avatar

      Yep. I have a 2011 GT with 3.31 gears and manual transmission. Driven it about 96,000 miles and am averaging 22.7 since I got it. Probably 80% highway miles. Best tank ever average was 30.7 and consistently get 25-27 on all-highway trips. Amazingly good mileage for the weight and power these cars have!

      • 0 avatar

        They use all sorts of neat tricks like cutting fuel on a downward incline to using the cam phasing in the 05 and later cars to reduce pumping losses at cruise.

        • 0 avatar

          No need to be on a downward incline to get the vehicle to go into ADFCO (Agressive Deceleration Fuel Cut Off), just need a closed throttle and a minimum engine rpm. This goes way back, at least as far as my 5sp 1992 Ranger which had DFCO and you could actually feel the fuel come back on at 1600 rpm as the engine braking would be reduced. Since then they have further refined it, to cut fuel in more situations and hold that fuel cut to lower rpm.

    • 0 avatar

      I used to bullseye womp-rats… uh, I mean, I used to knock down 27-29 MPG easy and even crested 30 MPG on one particularly good long uninterrupted interstate run in my ’96 GT back when it still saw regular highway use. 2.73 rearend and a .63 O/D works out to cruising at 75 MPH at barely 2000 RPM.

      Around town is another story. Equaling, let alone beating, the 17 MPG city rating takes a lot of discipline – aggressive short-shifting with the goal of getting into 4th as soon as possible and leaving it there as long as possible. I don’t have the discipline anymore and she’s not as efficient as she used to be with all the miles she’s piled up so it’s more like 15 MPG these days.

  • avatar

    I’ve hypermilled a 2001 Grand Marquis before. Gentle application of the throttle and I was able to get a few mpgs better than my normal jackrabbit starts. Of course the other drivers hated my guts as I went into neutral and coasted to red lights, and then eased ever so gently forward to accelerate.

    With the same Marquis, I once managed to pull ~29 mpg. 2.73 rear gears and heading south in Ohio with it’s 65mph speed limit (I stuck around 68) was the sweet spot for that car. 22-25 mpg was more standard for highway use, mid-teens for city.

  • avatar

    Imperial gallons? Then 20mpg is attainable.

  • avatar

    It’d be interesting if McLaren entered the competition. I got 18.4 mpg driving around LA in a 675LT.

  • avatar

    Yeah, i was just going to mention, Imperial gallon vs US gallon. Anyway i switched my display to American, on my 2015 Eco Boost Mustang , and calculated 3.73 Litres to a US gallon. I figure the best i could get was 27-28 MPG.

    On a recent run up to my sister in laws cottage. Two people , and suitcases , coolers , and beer , averaging 70 – 80 MPH running 91 octane gas. The Mustang can handle the speed, and load with ease. That being said, with the Turbo in play ??? Maybe 22 MPG.

  • avatar

    “two thirds of the Mustang’s 3,000 UK sales have been optioned with a 5.0-liter V8, making it the nations best selling high-performance car.”
    I thought that the Ford Focus RS or what ever it is called was the best high performance selling car in the UK?

  • avatar

    That must be with top up? Going topless on the highway can really take a toll on MPG in a convertible.

  • avatar
    SD 328I

    I’m assuming 20 mpg is UK city rating.

    The slightly more powerful US spec 2016 Mustang GT is rated 16 city/25 highway.

    Converted to the larger UK gallon, that should be 19 city/30 highway.

    Factory in Europe’s more generous mpg rating system, and it would seem 20 mpg is likely their city rating mileage.

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