I do have one ,2011 305V10, Behind a CHEV 2500HD Duramax crewcab short bed.
Very easy to pull and very easy to back-up even in tight spot due to the vnose.I run at about 27liter per 100km. (do the math) about 9mpg) at 68-70 mph, traveling from quebec to Daytona in nov and back in march .
The dry weight is 10079 pounds( from the manufacturer) and full payload,is about 14000 pounds.
The only issue I had is a flat tire(maybe a slow leak) so I changed the 4 tires for 12 ply tires. Seems to be fine, but now it is stores because I purchased a class A.