Nice review here of the VW Touareg V10 TDI.
Nonetheless, the Touareg V10 is no slouch. Step on the right pedal, and after a momentary delay while the torque converter gets wound up and the turbos generate some boost, acceleration comes in a rush. We didn’t try out any towing, but the way this thing accelerates at any speed, connecting a 7,700-lb trailer to the Touareg is unlikely to put any significant strain on the engine.