ford ops to go to the f550 for the c class, and with the f53 chassis, they only build class A's...for the rv market, the E350 and 450 dominates the class C market in power, GVWR, and GCWR...Mercedes, and the ford transit battle for the top spot in the low power, low GVWR class...which works fine if you don't wanna tow anything.I think they have a tow rating after loading the coach of only about 2500lbs... but even at that ..they are way under powered..