Surveys regularly reveal...

Surveys regularly reveal tailgating is one of motorists" biggest worries. Astucia, an Oxford-based company specialising in the hi-tech studs, is behind the plan. A spokesman told us: "We"re in preliminary talks with highways officials about how the technology can be used to stop vehicles travelling too closely together."

Government rules currently prohibit lit road cat"s eyes in Britain. But cars in Paris are led through tunnels on a ring road by Astucia studs, which light up in sequence so they appear to be moving at the speed limit. Drivers going faster than the lights know they"re breaking the law.