For those who are fearful that as soon as the wheels turn their cars may collide with something solid, there is much to be said for a new safety glass, which is akin to laminated, but with the advantage that it bends under impact. Even in vintage times Triplex safety glass was considered a good idea, and it seems likely that this new glass with a 0.039 in. thick interlayer will fulfil much the same role in the nineteen-seventies. It has been developed by Triplex and Monsanto. Incidentally, Mercedes-Benz, Citroën, Volvo and Saab standardise laminated windscreens.