As if the existing Toyota GR Supra that debuted for 2020 isn't enough, rumors about an even hotter Supra GRMN have seemly come true, as camo-clad prototypes have recently been spotted in Germany. That's funny, because the GRMN will be borrowing its mechanics from none other than BMW. Conflicting rumors over powertrains suggest that the GRMN could either benefit from M2, M3, or M4 power. But regardless of which Bimmer puts the M in GRMN, expect the upgraded Supra to have well over 400 hp, improved aero, and––here's to hoping––a manual transmission. The Supra GRMN is likely to arrive for the 2025 model year, which means a debut could happen sometime in 2024.