2006 Audi A8L quattro test drive and walk around with Chris from Chicago Cars Direct. Of all the cars here, Audi’s aluminum A8L is palpably the most sporting interpretation. From its flat ride to its meaty steering feel to its blipped-throttle downshifts in manumatic mode, the Audi is infused with a boldness that belies its stretched-limo appearance. Yet if you were picked up by your driver one evening, from the moment you ducked inside the leather-lined, wood-trimmed compartment and settled into one of the supportive seats, the experience would feel first-class. We scored the Audi’s rear-seat comfort the same as that of the Lexus, which is only surprising until you notice that the Audi is almost an inch wider and 1.6 inches longer. It simply doesn’t look like the larger of the two. Nor does it drive like a particularly large car. For the gearheads at this magazine, the integration of size and maneuverability was seductive, and the A8L trailed the Benz by just one point when the votes were tallied. Indeed, the Audi needs the more powerful engine that it got for 2007. Although the 4.2-liter V-8 pulls steadily with a linear increase in urgency and a mellifluous exhaust note, it can’t match the accelerative prowess of its rivals. This may matter on the straights, but the Audi is another animal altogether when the road gets all wrinkly. Despite its damped responses in the lane-change test, where even large inputs fail to upset the chassis, the A8L takes to the twisties with …