Originally Posted by cvanzan
I'm mainly concerned about the ability of their 2.0L to adequately tow my 21'.
The 2.0 L engine is a turbocharged diesel, so it won't be directly comparable to a typical 2.0 L, which is a non-turbo gas engine.
Like most small diesels, it has substantially less peak power output than common gas engines in similar vehicles... but some people are apparently happy with that.
The Mercedes 2.0 L has lower peak torque than the larger diesels in the Transit van and Colorado/Canyon, but higher power... it will be able to move the load, but will require higher engine speed than those other diesels, and will have lower performance than the gas engines (even the non-turbo gas engines) in the same vehicles.
Although the much larger Mercedes Sprinter van has a 3.0 L turbodiesel in North America, it usually has a 2.0 L in Europe... probably this same engine.
Whether performance is acceptable or not would depend on your expectations.