A handful of British-registered performance cars proved something of a handful for the French police recently. The five cars, including two Porsches and a Lamborghini, rocketed past an off-duty officer travelling in his own vehicle along a stretch of autoroute close to the Spanish border. Because of the high speeds involved, the French police opted to use a helicopter operating out of its base in Bayonne to track the cars. The drivers did spot the helicopter tailing them and then slowed down but were still