Well, the Sprinter is essentially a commercial vehicle, as we know and does incredibly well in service in the US,Europe, Canada and elsewhere. But, the use of a 4 cylinder diesel to haul our SPrinter Rvs is another story. The commercial Sprinters can handle a lot of cargo but an 11,000 plus rv vehicle is a big baby to move. No wonder the Sprinters have a V6/188hp for 3500 chassis now as compared to the single axle 2500, 8500 lb Sprinter with I-5. I drove a new BMW 328i today with the turbo 4 and it was ok but didnt have the low end grunt of my 2011 BMW528i 6 cylinder--now coming with a 4 banger since 2012. Groan. It gives me pause, to say the least...
PS the 4 cylinder BMW tended to drone and sounded un=-BMWish....Groan(twice)