Earlier quoted context omitted.
All that acceleration is enabled by it violating the environmental laws of every western country.
VW is not alone, Fiat Chrysler did the same thing. http://money.cnn.com/2017/01/12/news/companies/epa-emissions... the tricky question: did anybody figure out how to do a clean enough diesel engine without cheating? i think its funny that European countries were pushing Diesel engines just because they emit less CO2, disregarding the NOx problem. https://www.theguardian.com/business/2015/dec/05/vw-diesel-c...
Yes. It is just more expensive in terms of maintenance because the urea-based cleaning liquid ("AdBlue") needs to be refilled by the dealer a lot more often if the exhaust scrubbing doesn't cheat and disable it half the time.
If you are interested in the details of the topic, I can recommend this CCC conference talk from last month: