ByKolles Racing look set to miss the 1000 Miles of Sebring next month with the team understood to be in dispute with NISMO over the performance of, and payment for, their VRX 30A Evo 3-litre V6 engines.

DSC understands that the engine supply issue prevented the team from undertaking a planned endurance test at Aragon last month and that a continuing dispute means that the Sebring race is now not logistically possible.

With an impasse between the team and engine supplier continuing at least one team source is suggesting that an alternative engine supplier is now being sourced.