Hard to ignore the Rally Fighter. Open-source, collaborative built, constantly evolving.
http://www.local-motors.com/rallyFighter.php
Curb Weight: 3,000-3,200 lbs.
Drivetrain
6.2 Liter, V8 Engine
Automatic transmission
430 Horsepower @ 5,900 rpm
424 lbft @ 4,600 rpm
Rear Wheel Drive
Approved as 50 state emissions-compliant
Chassis
Construction-Tubular steel space frame
Front Suspension:
18" Travel, independent double A-arm
Detachable stabilizer bar
Spring System-Long travel coil-over shock absorbers
Rear Suspension:
20" Travel, 3-Link Solid axle with watts link
and stabilizer bars
Lug Pattern-6 x 135mm
Steering Type-Power assisted rack and pinion
Brakes, Wheels, Tires
4-Wheel Anti-lock disc brakes
Front: 13" ventilated - dual-piston floating
Rear: 13.7" ventilated - single-piston floating
Emergency brake: Rear drum in rotor
Wheels: 17"x8" aluminum alloy
Tires:
275/70R-17(High ride height)
265/50R-20(Low ride height)