Former IMSA Continental Tire SportsCar Challenge class champion Stevan McAleer is set for his series return, but stepping up to the GS class, having been confirmed alongside Joe Robillard in a Bodymotion Racing Porsche Cayman GT4 Clubsport MR.

McAleer, who along with Chad McCumbee won the 2015 ST class title with Freedom Autosport, will make his debut in the GT4-spec Porsche, after more than five years being associated with Mazda.

McCumbee, meanwhile, was confirmed last week in also moving to GS, in a Ford Mustang GT4 fielded by Multimatic Motorsports.

“After six great years with Mazda, two drivers championships, eight wins in the Continental Tire Series Championship I felt it was time to move up into the highly competitive GS class and go tick another Championship box off,” McAleer said.

“For sure I will miss the laughs with Chad during the IMSA weekends and our McCumbee McAleer Racing MX5 Cup Team will still be competing for its own championships however this new direction in the GS class simply brings me one step closer to my dream goal to drive in the WeatherTech IMSA Series”

Radical Cup competitor Robillard will enter his rookie season in Continental Tire Challenge.

“I have been a fan for years and participating in GS will fulfill a long-held goal. Most of the racing I have done is in open cars, so the Porsche Cayman GT4 is new and exciting,” he said.

The New Jersey-based team finished runner-up in the GS championship this year with Cameron Cassels and Trent Hindman, who has been linked to a switch to VOLT Racing’s Mustang GT4 effort.

“We will prepare and race for the 2018 championship, each race, one at a time. Our sponsors, drivers and crew deserve nothing less than all our best efforts,” said team owner Mike Bavaro.

“We look forward to having a Porsche once again on the top step of the championship podium for the 2018 running of the IMSA Continental Tire Challenge series GS class”