Whelen Engineering Cadillac DPi-V.R '2020–22

Mazda RT24-P '2021 Produced in a single copy

After five years of participating in IMSA’s DPi series, Mazda is opting to end its program at the close of the 2021 season with the Motul Petit Le Mans race in October. This was determined after an internal assessment of the current DPi series and the future LMDh series, and concludes Mazda’s participation in prototype racing.

Ally Cadillac DPi-V.R '2021–22

Konica Minolta Acura ARX-05 DPi '2021–22 Produced in a single copy

For the 2021 season, Konica Minolta (Wayne Taylor Racing) campaigned one of the ARX-05s previously run by Penske.

Meyer Shank Racing Acura ARX-05 DPi '2021–22 Produced in a single copy

For the 2021 season, Meyer Shank Racing campaigned one of the ARX-05s previously run by Penske.

WheelsAge.org '2005–pr.