Sooo VW have covered up their diesel engine emissions ? Did they just have really poorly designed engines that threw out lots of nasties ? What about the other manufacturers - either they have much better engines or they've been fibbing too ? Was it an open secret in the industry ? Surely GM and Ford etc would have been checking out the rivals and wondering what the secret was - unless they were using it too ? People change in the industry all of the time so surely some VW people have moved on and shared their knowledge ? Will this kill diesel cars ?