Re: When did the 24'+ class C makes start using Sprinters?
I noticed this at a local Forest River dealer that sold Sunseekers and Soleras. They only were selling the Solera, not the 24' Sunseeker, although they offered the longer and shorter models.
This also has spread to other brands. People want Sprinters because of the better handling, M-B logo, and the very good fuel economy. The 2014 Sprinters up the ante offering a lot of safety features as well as better MPG with the four-banger diesel.
There is the fact that the Econoline days are limited, and that Chevy doesn't have anything equal to an E-450 in its lineup. Because of this, the C industry is going to move to another chassis, and right now, Sprinter is the only game in town. However, as i've rambled about before, this will be radically changed in a year or two when the Ford Transits are available and give most of the advantages of the Sprinter, but with gasoline engines. The ProMasters are also a common platform for "coach builts", with Winnebago's Trend being the opening salvo.
There are always downsides; the ProMaster chassis is a lightweight compared to the Econoline, so slideouts will be a thing of the past on that chassis.