Audi uses Quickstart heater plugs to solve another historic diesel problem: long prestart regimes in cold weather. The V-6 will fire within two seconds even when the mercury is frozen at the bottom of the thermometer bulb.
Perhaps the best part of living with Audi's oil-burning Q7 is its fuel range. Our experience and Audi's estimates indicate that 600 miles per tank should be easy to achieve on the highway, so you'll want to be sure to hit the restroom before you leave. With that kind of fuel range and standard Quattro, not much is going to slow you down.
The Q7 3.0 TDI goes on sale in January of 2009. Prices and mileage estimates are forthcoming.