• In this Sept. 23, 2015 file photo, diesel Volkswagens are seen behind a security fence on a storage lot near a VW dealership in Salt Lake City. Volkswagen is far from the first company to stand accused of trying to game required emissions tests. Almost since the passage of the Clean Air Act in 1970, major manufacturers of cars, trucks and heavy equipment have been busted for using what regulators call “defeat devices” _ typically programing a vehicle’s on-board computer to boost horsepower or fuel mileage by belching out dirtier exhaust than allowed. (AP Photo/Rick Bowmer, File)

    VW the latest in long list of companies caught cheating

    WASHINGTON (AP) — In stock car racing, there’s an old adage: If you ain’t cheatin’, you ain’t tryin’. You could say the same sometimes for auto makers up against stricter environmental rules.