Tucked away in the corner might have been both Cody's and my favorite car there. An AC-Schnitzer widebody E21 tucked wide BBS E50s under its boxed flares. A look under the rear end showed all of the ACS goodies including a full dual exhaust and the always interesting driveshaft-powered differential cooler and pump. Under the hood sat an M106, the turbocharged M30 variant from a 745i. The Collector explained to me that the car itself was an ACS prototype car of sorts, one of the few set up this way. And of course, as you might hope, he tells me its the quickest in the shop.