D4

The Palatov D4, designed by engineer Dennis Palatov, represents an ultra-lightweight, track-only race car optimized for hillclimb and time attack competition. With a wheelbase of 68.5 inches, length of 103.8 inches, width of 67.3 inches, height of 45 inches (to top of rollbar), and ground clearance of just 1-2.25 inches, the D4 weighs approximately 900 lbs in typical configuration. Power comes from various motorcycle engines, typically 1.0-1.3 liter units producing 175-200 hp, though the advanced underbody aerodynamics and chassis capability support turbocharged configurations exceeding 300 bhp, enabling power-to-weight ratios surpassing 700 bhp-per-ton in ultimate specification.

The chromoly steel (4130) tube frame construction complies with racing regulations for vehicles weighing up to three times as much, with the driver feet positioned entirely behind the front wheels for maximum safety. The composite driver pod fully encloses the occupant, cushioned by a form-fitted BSS seat with standard six-point race harness. Long-arm double wishbone suspension with pushrod-activated coilover dampers and optional all-wheel drive system provide exceptional handling dynamics. The quick-change bodywork facilitates rapid setup modifications between events. Being highly optimized for track competition, the D4 is not suitable for street use and no road-legal options are offered. The platform has achieved notable success in Pikes Peak International Hill Climb and time attack competitions, demonstrating extreme capability in the most demanding motorsport environments.