McLaren says cars with the roof scoop use a different process to secure the polycarbonate window. The 765LT Spider does not have a polycarbonate window and is also excluded. The company couldn't ...

One detail illustrates the R26.R’s motorsport-inspired madness better than any other, though: polycarbonate rear and rear side windows. Renaultsport saved 5.7kg by ditching glass and it’s this ...