Let them have their fun, if they like it good for them. Not every one is into MB's either, I do respect those guys that get big hp out of those little motors. I keep hearing the VW 1.8T motor is good for 300+ hp without much work!
Stick one of those in a 4wd wagon for a nice little sleeper...
I will just put them in their place in a stop light race or on the highway.
Not being able to pass a diesel MB on the highway must deflate their ego's a bit.