It seems that their 2.0ts deal with carbon buildup just the same.
http://www.blueovalforums.com/forums/index.php?/topic/53818-gdi-and-carbon-build-up/
^ lol at using an example from vwvortex...
Yeah...don't push it too hard. You can lightly suggest different cars but in the end if you push him to get a VW and he hates it/has problems with it he's going to end up blaming you.
Why doesn't he look at the Sonata? It's a Hyundai, it's not bad looking and it comes in a 2.0t.