So does anyone feel cheated? Its an incredible story. Hard to believe that this could happen on that size scale with no one coming forward - not even a dis-heartened employee at some point. Surely more than a few people knew what was going on.


Nice summary here


What has VW done?
The company has falsified emissions data on its vehicles in the US, pretending its cars were cleaner than they are

How did they do it?
By installing a piece of software into computers on its cars that recognise when the car is being tested – a so-called "defeat device". This fine-tunes the engine’s performance to limit nitrogen oxide emissions. When used on the road, the emissions levels shoot back up

How widespread is the problem?
Regulators say 482,000 diesel cars were sold in the US from 2008 to 2015 with emissions certificates based on this faulty information

Which models are involved?
The allegations, which have been admitted by VW, cover the Jetta, Beetle, Audi A3 and Golf models from 2009 to 2015 and the Passat in 2014 and 2015

Is it just VW doing this?
A US investigation has been widened to other car manufacturers as campaigners warned that the practice was likely to be widespread across the industry