Ford Mustang GTD Competition Confirmed on Street-Legal Tires After Record-Setting Nurburgring Lap

The debate is over. Ford’s Mustang GTD Competition, which shattered the Chevrolet Corvette ZR1X’s Nurburgring lap record, was indeed running on street-legal tires, not slicks. The Drive has confirmed the tires are Michelin Pilot Sport Cup FR, a spec that stands for Ford Racing, according to a Michelin spokesperson.

The same tire was used in the Mustang Challenge series for a full season.

Ford brought the record-setting car to Laguna Seca Raceway during Monterey Car Week, still fitted with the exact rubber from the Nurburgring run. Melted bits and feathering were visible on the outer tire edges, backing up the claim.

In April. 835, one of the fastest times for any street-legal production car, trailing only the Mercedes-Benz AMG One. Ford has kept many upgrades under wraps, but confirmed the car has more than the standard GTD’s 815 horsepower, thanks to upgraded hardware and tuning. Other known changes include rear wing modifications via a DRS system, extra dive planes on the front bumper, carbon fiber aero discs on magnesium wheels, carbon fiber bucket seats, and lighter dampers.

Ford also mentioned “additional actions to help reduce weight” without specifying what those are.

5 seconds in May 2025. Chevy responded by topping Ford’s record twice in July 2025. ” Months later, a modified GTD was spotted testing at the ‘Ring, followed by more hot laps in March. 237 seconds off the standard GTD’s lap time, leaving critics questioning the tires, until now.

The record stands, and the rubber was legal.