The M4 GT3, which replaces the venerable M6 that has been in service since 2016, was due to make its debuton the Nurburgring Nordschleifein June but this was postponed after a technical fault caused Sheldon van der Linde to crash in practice. The car had previously appeared at the official Spa 24 Hours test day, where it had topped the unofficial times with Nick Yelloly. With ... Keep reading