I understand where he is coming from in terms of business perspective. He wants to shift it onto the consumers so they are forced with either updating there current vehicles and thus GM wouldn't have to pay the huge tax fines for exceeding CAFE standards etc.
Realistically it's not a bad idea but all of us Americans will throw a fit because we've historically had some of the lowest gas prices in the world --- unlike Europe who takes the hell out of gasoline/diesel to accomplish several of the same objectives.
2011 335d - DD
1998 M3 Vert - For Sale
1995 M3 Track Car
2008 335i - Retired