The reference to regarding the BMW M4 typically points to high-performance lap times or specific vehicle mods. 1. Racetrack Performance
In professional and amateur racing, "1:37" is a significant benchmark for the M4 on several world-class circuits:
Modified F82 M4 models have been recorded hitting the 1:37.10 mark when equipped with slicks and aftermarket suspension. For context, a stock M4 CSL (G82) can reach roughly 1:36.45 at this track.