As stated, I need something to haul people and tow big kid toys (new motorcycle I got yesterday, buggy, probably a couple more bikes soon). I am already settled on getting the CDI version, but I'm between the ML320CDI and the GL320CDI. I realistically don't NEED 7 seats. But I might at some point use them all. It's pretty easy to fill 5 seats in my S63 on any given Friday night. Thus the ML and 5 seats seem small and limited. BUT--the GL seems like it might be too large. I'm not sure what the wheelbase is or the overall length and width are. I've driven the R320 and it was massive, but didn't really feel like it. Anyway, any feedback is appreciated.