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Maxwell: Mustang GT4 “Feels More Like a GT Car”

Scott Maxwell on Multimatic’s new Ford Mustang GT4…

Photo: Jake Galstad/IMSA

Photo: Jake Galstad/IMSA

Defending Continental Tire SportsCar Challenge GS class champion Scott Maxwell reckons the new-for-2017 Ford Mustang GT4 is a step up from its predecessor and expects a strong fight all year in the revamped GS class.

Maxwell and 2016 co-driver Billy Johnson won six races in the Ford Shelby GT350R-C en route to the title a season ago, but a larger GS field and and the adoption of GT4 regulations for Continental Tire Challenge in 2017 has changed the landscape of the class.

Both drivers were heavily involved the the development of the Multimatic-built Mustang GT4 since the project’s inception, but with Johnson’s off-season elevation to a Platinum driver rating and his resultant ineligibility in the series, much of that project fell on Maxwell’s shoulders.

The Canadian said he has relished that role, and gave a glowing review of Ford’s new GT4 contender, which made its public debut this weekend at Daytona.

“The biggest difference [between the two cars] is the aerodynamics,” Maxwell told Sportscar365.

“We have a lot more downforce [on the GT4], so that’s the first thing. We have a different engine, so it has different characteristics in the way it pulls, the torque curve, peak horsepower, and things like that.

“Another thing, the paddle shifts, the new gearbox we’re running, it makes it a lot easier, obviously. It’s a lot cleaner shifting. That helps with lap times.

“The tires are completely different than what we’ve run before. We’ve tested on both the IMSA-spec and PWC-spec tires. That’s a huge difference.

“Overall, a summation of it all, it’s a quicker car. It’s a lot easier to drive. It feels more like a GT racing car, a GTD almost, than what we were running before.

“The other car, we had a lot of horsepower but not a lot of grip. I like to use the term, the car would ‘float’ a lot because we didn’t have the downforce.

“So we had all this power, not a lot of grip, and not a lot of downforce which made it a real drivers’ car. I think really good drivers excelled in a car like that because you had to drive it aggressively.

“But this one is a lot more fun!”

Reunited with former co-driver Jade Buford for the upcoming 2017 campaign, the Multimatic Motorsports team faces significant challenges in an upgraded GS field that saw 21 cars entered for the annual Roar Before the 24 pre-season test.

That number is expected to grow before the season-opening BMW Endurance Challenge at Daytona later this month.

The increase is accounted for by an influx of GT4 machinery from Porsche, Aston Martin and McLaren, and Maxwell noted that just how the Mustang GT4 will stack up against is competitors is up in the air.

“I was following a couple of the fast McLarens and fast Porsches and you can see their strengths and weaknesses versus us,” he said. “Overall, we won’t know until we get here in three weeks, but I think it will be quite close.

“I was skeptical on the plane down that we would be as close as we were, but I had never really run behind these McLarens, and that’s the one that everyone was wondering about.

“IMSA’s looking at all the data after every session. I’m sure they’ve learned some stuff. Come race day, it will be close, but it will take awhile to figure that out.”

Multimatic’s entry for Maxwell and Buford is the Blue Oval’s lone representative at the Daytona test, but Maxwell said he expects to be competing against other Mustang GT4s later this year.

“I don’t think that day is too far away,” he said. “I think the intent hopefully is for there to be more than one Ford at the first race and then maybe as the season goes on they’ll start to show up at the events.

“By this time next year I’d like to see a handful of them, if not more, here, and over in Europe and wherever [GT4] runs.

“If we can prove that we’re competitive against these other manufacturers, the global image of the Mustang is pretty strong.

“I think people want this car. It’s unique, it makes a lot of noise, it’s American muscle, it’s what people love.”

Ryan Myrehn is an Indianapolis-based journalist and sportscaster, covering IMSA and Pirelli World Challenge. Myrehn, a graduate of DePauw University, is also the host of Sportscar365's “Double Stint” Podcast.



  1. Not Nick

    January 8, 2017 at 12:02 pm

    I know this has nothing to do with this car, but why is the Invisible Glass Aston Martin not running with a rear wing?

    • Andreas Lutz

      January 8, 2017 at 12:14 pm

      For 2017, people can run cars in either GT4 or vintage-GS spec, I suppose the invisible glass guys are doing the latter for their Aston.

      • Not Nick

        January 8, 2017 at 12:19 pm

        Thanks for the info!

        • Jack

          January 8, 2017 at 1:52 pm

          That invisible glass car is also from 2012, correct me if I’m wrong, but it’s a very old car now.

          • JBracing

            January 8, 2017 at 2:35 pm

            That has to be one of the oldest cars on the grid.

    • Simon

      January 8, 2017 at 12:22 pm

      It appears they are running the car in GS spec rather than gt4, for the time being at least. They’ll have to upgrade to be in any way competitive though

  2. Virendra

    January 9, 2017 at 1:11 am

  3. John Ziraldo

    January 9, 2017 at 12:06 pm

    Surprised to see the red Shelby (GT350R) badge in the grill. I thought a Shelby label was no longer appropriate for a Mustang GT4 even though it is a progression from the GT350R-C.

  4. Gone

    January 10, 2017 at 7:56 pm

    The voodoo engine was a hype machine and was not reliable in the long run. It also sounded like crap @ Daytona. Glad it’s gone.

    • Rajna Savnde

      January 25, 2017 at 7:18 pm

      You’re a majority of one there sport. Never read a review of the Shelby that didn’t rave about the sound of the engine. And when did a Voodoo puke in a race? Lots of GT350R owners who track their cars hard nuts will argue with you on that one.

      • Gone

        March 7, 2017 at 10:05 am

        I owned one and sold it. The quad exhaust sounded like crap when it would open in standard mode. Have you ever heard one from the outside ? Voodoo also no toque down low. Made for a boring car on the street. 8000 rpm and everything connected to the engine takes a toll. The engine is gone in the GT4. Durability issue were the reason to go back to a CPC crank. This is a problem on the street cars oil filters and oil lines coming loose. Stop drinking the kool aid. Engine failures seem to be higher then normal also.

        • Jim

          March 7, 2017 at 5:24 pm

          I own a 350R and it’s great sounding car, a Symphony of awesomeness. It’s only right to stay in the high rev range. I never go below 3,000RPM unless I’m just starting out in first. Not many tracks your gonna drive in first under 3,500 rpm.
          You must have got a bad one, mine runs perfect.
          It is a car that is higher maintenence, for sure. Ford made some short cuts but mine is a keeper. I’m sure the next gt500 will be more of a monster. Gt350R is a subtle fun to drive car.
          I do look forward to the 5.2 CPC as ford will grab more power from it. Crate 5.2 makes 570hp.

          • Lone

            March 8, 2017 at 2:15 pm

            I’m back in a 14 Shelby GT 500 and way more fun on the street. It’s got all the coolers for the track also. I have attended the ford track day for the 350 in which they wanted us to stay in 3rd gear only. BORING ! Sorry not a fan of the 350. Maybe the R but not @ those crazy ADM’s. The sound of the engine sounds like a hundred chainsaws running @ wot. Not plesent to the ears. The GT4 sounded better @ Daytona this year…. higher pitch like a trans am car that Tommy Kendal used to drive back in 2000.

    • YamahaR1

      June 17, 2017 at 12:23 am

      Stop lying you never owned a GT350. How are you going to say it difinitely sounds bad when literally every auto reviewer praised the sound and talked about how fun it is to drive. Nobody agrees with you.

      If the 5.2 sounds like a chainsaw, the cross-plane V8s in the Mustang GT and Camaro SS sound like fart machines.

      You can track the GT350 for hours and the engine wont break a sweat and unlike the Z06 it wont go into limp mode.

      All that BS you said about how owned one and sold it for a GT500.. nah, you aren’t fooling anyone.

      BTW this GT4 car still uses the excellent-sounding voodoo V8, they didn’t drop it.

  5. Juninho

    January 17, 2017 at 6:02 am

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    PC (LMP3)
    GS (GT4)
    ST (TCR)

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