i don't see anything wrong with that...these cars are pretty fast as is despite being boring. no carbon build up problems like ie all the euro cars have
The 350 is quick enough but gets poor gas mileage and is overall inefficient.
The 250 is among the slowest in the segment with also among the worst gas mileage.
And they are less prone to build-up but aren't untirely immune. Carbon build-up is a trait of direct injection more than it is forced-induction. These are still direct injection motors but they do combine the more traditional port-injection as well.
I would still prefer an N20/N55 motor or 2.0T/3.0T to the 2.5/3.5 offered here, generally speaking.