Tougher MOT tests from May will put diesel drivers in the line of fire

A raft of strict checks will lead to more cars failing, with tougher emission measures likely to catch out diesel vehiclesA tough new MOT testing system for 30m cars on Britain’s roads starts on 20 May – threatening expensive bills for many diesel drivers and chaos at MOT centres as fears grow that new emissions testing equipment will not be ready on time.The old-style “pass or fail” test is being replaced with a new MOT system that will classify faults as minor, maj