Longtime Ford Mustang entrant KohR Motorsports has confirmed a switch to an Aston Martin Vantage GT4 for the IMSA Michelin Pilot Challenge season.

As first reported by Sportscar365, the Dean Martin-led squad will field a new-gen Aston GT4 for its race-winning driver lineup of Nate Stacy and Kyle Marcelli.

The No. car for the 60 entry was initially listed as “TBA” on the initial entry list released by IMSA for next weekend’s season-opening BMW Endurance Challenge at Daytona International Speedway.

Martin said he’s “very excited” for the new program with the British manufacturer, although admitted it has come under late notice.

“As a team that has never raced anything other than a Ford Mustang in IMSA competition, this will be a new challenge for KohR Motorsports this year,” he said.

“But, this is a challenge that we are extremely enthusiastic about.

“We’re excited about the new partnership with Aston Martin. Their support with this very late decision to change manufacturers has been outstanding.

“We’ve had very limited time with the car, but it’s proving to be a fantastic platform.”

The car will prominently feature support from Race for RP, a campaign created to drive education and awareness for Relapsing Polychondritis, a systemic

inflammatory disease that affects multiple organs, particularly cartilaginous structures such as the ears, nose, airways and joints as well as eyes, skin, heart valves and brain.

Marcelli added: “This came as a late surprise, but I think we are all looking forward to this program.

“It will be learning curve for all of us, but we are excited about the challenge.

“I strongly believe we have a package that can compete for race wins and the championship, we just need to execute to the best of our ability and let the rest take care of itself.”

Confirmation of KohR’s Aston brings the number of Vantage GT4s up to four for next week’s season-opener, alongside a pair of returning Automatic Racing entries and a new entry from Stephen Cameron Racing.