I am not much on the mechanics, but it seems lika a lot of power in a smaller pack has evolved. Also, someone posted that a normal 4 wheel drive tranny with no rear wheel drivers could possibly be used. What, too, of electric hybrids?
What I wonder is what a totally sweet sleek RV could be. Something crossing the Rialta but more hefty (ala LTV Freedom Serenity, but lower with FWD), 8 ft height, 22-24 ft. long, 7.5 ft wide, 24 mpg, $60k (once every boomer catches on!!)...things like that.
The new LCD TVs show how a lot of extra space is available with modern technical changes, and I am sure there are more. Just an innovative wet bath that requires half the floorspace, but is still a good stand-up shower. Broad, thin, flat water/wastewater tanks like some small travel trailers use. Mascerator pumps that might allow more blackwater capacity from less tank, etc.
On Edit: I've got it!! The New RV will be called
"The Two-Four"
240 hp
24 ft long
24 mpg
2.4 meters high (almost 8 ft)
2.4 meters wide
24 gallon tanks all around
Best of all, only $24,000!
2005 Trail Lite 213 B-Plus w/ 6.0 Chevy