Read more about Is This the New Ford Mustang GT500? at AutoGuide.com.Ford is trying really hard to hide all the details on this prototype, so it must be something juicy.
Spy photographers have caught what appears to be the 2019 Ford Mustang GT500 testing on the streets of Detroit. It’s clearly wearing a lot of camouflage to conceal its bodylines, but a closer look at the tires tell a story.
The American automaker doesn’t even want you to know what tires are being used on the prototype, nearly scrubbing off all the markings on the sidewall. What our spy photographers can make out is that they’re sized 305/30/ZR20 on the front and they’re from Michelin. By comparing products on TireRack, our spy photographers believe they’re the new Michelin Pilot Sport 4S tires, but the big takeaway is that they’re 20 inches up front, which is larger than the 19-inch standard tires up on the GT350 and GT350R.
Unfortunately they weren’t able to confirm what’s in the rear as there’s nothing readable on those tires, though it’s possible Ford is using 21-inch wheels and tires out back.