...you wonder how much it would cost to find a nice used E46 M3, strip it, put on coil overs, new bushings, a free flow intake, ecu tune and catless exhaust, a BBK, 18" track wheels and tires, race seats with harnesses and a full cage. And then buy an adequate tow vehicle and trailer. And then expand your house with more garage bays for the E46 with trailer. And tow vehicle.
Oh, screw it. I'll keep on taking the E90 with rear booster seats and sippy cups to the track.