This article makes the case that "going diesel" has, at least in Europe, become an emotional as well as practical decision, with diesel iterations becoming more desirable than their gasoline-powered counterparts. This movement is quite well exemplified by Audi's new Tdi application, the A8. The engine is a 4.0 liter V8 with two turbochargers and matching twin intercoolers, producing 272-hp and 479 lb./ft. of torque which could prove useful in uprooting stubborn redwoods. Of course Quattro is there to put the power to the ground, and a surprisingly sporty six-speed tiptronic setup handles the gear changing, helping the A8 hit 60 mph in about six and a half. Audi has truly brought diesel into the luxury realm, with none of the stereotypical noise upon startup, and all of the requisite flagship appointments, including a knee-buckling tag of £57,630, which translates to just over 100K in U.S. monies.