The Mercedes ... almost the entire range, but how much do you really know about the three-pointed stars' all-wheel drive system, and what does the 4Matic system mean from model to model?

Shifting his ton-and-a-quarter of model ... the AWD Sprinter will tackle any terrain a pickup could climb through without resorting to low range. Two months into our yearlong test, the Mercedes ...

And I think I understand how the Mercedes does it ... We could have set up a controlled test, but given the Sprinter's range of 450-plus miles on a tank of fuel and considering that MotorTrend ...