John Hennessey Tests Stock 2015 Mustang GT’s 0-150MPH Time

For most people and under most circumstances, the bog-standard 2015 Mustang GT with its 435hp 5.0L V8 is fast enough, but not for all…

John Hennessey, the man behind the Hennessey Performance brand, took a stock Mustang GT for a spin and recorded his impressions before he releases the new HPE600 and HPE700 tuning packages with 620hp and 717hp respectively.

If you skip to the 3:05 mark in the video, you’ll see the 0-150mph (241km/h) run he performed, with the GT proving to be fast up until 140mph (225km/h) with a 0-100mph (160km/h) time of 11.2 sec and 0-140mph in 22.5 sec, but its performance dropped considerably after that with the 0-150mph coming in at 49.27 sec.

“It took forever to get to 150mph – I mean forever. Pretty stable though,” says Hennessey, who will return with a new video when HP’s packages are ready.

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  • Craig

    Interesting. My bone-stock 2006 300C SRT8 also reaches 100 mph in 11.2 seconds. I don’t know how long it would take to get to 140. It does have a top speed of 173 though. Not bad for a car that weighs about 700 lbs more than the new Mustang GT.

  • JorgeDeeeeeaz

    With over 400HP it should not take that long to reach 150mph…..

    • Howie Normus

      It should take forever as they are governor limited to 149 mph from the factory. What a dimwit.

  • Stig

    The car is brand new. There would be a remarkable difference after 6000 miles.

  • Jeff Levine

    So he shifts from 5th at 140, a 1:1 ratio gear to 6th a .65:1 ratio gear and acceleration falls off-no surprise there-but what RPM was he turning when he shifted? A quick calculation and it was about 5200 RPM on an engine with peak power at 6500 RPM and a 7000 RPM redline from the factory, all before the engine was even broken in. I suspect he will not shift early when he try to sell us his great upgrade package.

    Hennessey knows his stuff so this strikes me a deceptive.