Right now I'm in truck-search mode, so I'm going to go with that format. I want a truck that can handle hooliganism yet it can still function as a truck. I don't need it to tow sixteen tonnes, but four would be plenty. 6- to 8-speed manual transmission, 2WD, independent suspension front and back, sport-tuned track-inspired suspension with center of gravity rivaling that of a Corvette. Engine would be detuned at around 600hp or so in at least a V8 form, V12 preferred, around 8 to 9 liters. Naturally- aspirated, absolutely no forced induction.
Monocoque, space-frame, seam-welded titanium body with bending and twist rigidities that will make a Corvette envious. Load bearing body panels, bonded at minimum, preferably welded. Suspension is double wishbone, bell cranks, pushrod, inboard-mounted coil-over-damper. Heim joints, ball-and-socket throughout. Cockpit-adjustable dampers and anti-sway bars.
Two-speed rear end with clutch-type LSD and eletrically-actuated differential lock with a pump and a heat exchanger. Strengthened gears throughout, I'd be tempted to run straigh-cut gears in the gearbox coupled with an oversized multi-disc clutch.
Wrap all that up in a body resembling a Pagani Huayra. Brush-finished titanium body panels, foam-filled structure cavities, and double-sealed doors and glasses.
Those would do for now