You are giving people way too much credit here. No-one is going through all of the specifications of their car and buying it for those reasons. Plus, you don't

You are giving people way too much credit here. No-one is going through all of the specifications of their car and buying it for those reasons. Plus, you don't buy a diesel vehicle to be eco-friendly, you buy it to get better gas mileage. Car came with X features, which is high MPG. VW got in trouble for X features so they had to flash the computer with Y features, which is lower MPG. This particular customer didn't want to give his vehicle up, but wanted a check. For what reason? To receive money. There is no other reason, if this person was upset about the scandal, they would get rid of the VW fast. Do you not see how this is entitlement? They didn't care about the fact that their car is polluting the planet, they just want money.