iRacing’s 2023 Season 4 Build has dropped completing the full roster of IMSA’s GTP cars by adding the Acura ARX-06 and Porsche 963 to the already-present Cadillac V-Series.R and BMW M Hybrid V8.
So, with the full gamut of America’s premier prototype class at our disposal, our very own Piers Prior took all four for a spin to cast his trained eye over their strengths and weaknesses.
Will your favourite be the darty Acura, the nimble BMW, the raucous Cadillac or the planted Porsche? Piers lays down some quick reference lap times to help you decide, with all four GTP cars proving to be well-balanced around most tracks.
Do you agree with Piers’ assessments of all four of iRacing’s GTP cars? Which is your favourite? Let us know in the comments below.