Hillclimb Harrier

Triple-element adjustable carbon fiber rear wing with hydraulic height control
Extended front splitter with dive planes for front-end downforce
Underbody venturi tunnels integrated into floorpan
Rear diffuser sculpted into widebody rear arches

Purpose-built for the brutal demands of hill climb racing, the Harrier excels on steep, winding mountain roads where precision and downforce are paramount. Its adjustable suspension and aerodynamic components allow for quick adaptation to changing conditions, while the wide track and sticky Michelin tires provide exceptional grip. This build thrives in technical sections, offering confidence and control at high speeds on narrow, elevation-challenging courses.

Centerlock OZ Racing forged wheels
19x10.5 front and 19x11.5 rear wheel sizes
Michelin Pilot Sport Cup 2 tires for maximum grip
Staggered setup optimized for hill climb traction and handling

Front-midmounted 5.2L turbocharged V8
Upgraded intercooling with front and side-mounted radiators
Custom ECU calibration for torque curve tuning
Lightweight exhaust system with heat shielding

Extensive carbon fiber body panels for weight reduction and rigidity
Custom hydraulic wing actuation system with quick adjustment
Reinforced chassis bracing to handle widened track and increased downforce
Precision-machined suspension components for adjustability and durability

The Hillclimb Harrier transforms the 1983 Chrysler Fifth Avenue from a classic American luxury cruiser into a ruthless hill climb contender. This build strips away the sedan’s traditional comfort, integrating a front-midmounted 5.2L turbocharged V8 beneath a vented carbon fiber hood, paired with a clam-shell polycarbonate rear hatch for optimized heat extraction. Its widebody stance, enhanced by over 600mm of track width gain and sharply sculpted arch extensions with vortex generators, combines aggressive aerodynamics with the sedan’s imposing silhouette to maximize grip and airflow control on steep, twisty ascents.

Purpose-built for privateer competition, the Harrier features a triple-element carbon wing with hydraulic height adjustment and an extended front splitter, emphasizing downforce and balance rarely seen in this chassis class. Adjustable suspension lowers the car to just 110mm ride height, while Centerlock OZ Racing wheels wrapped in Michelin Pilot Sport Cup 2 tires ensure traction and responsiveness. This build is a technical statement—a collision of 1980s turbo era muscle and modern carbon aero refinement, designed to dominate tight, demanding hill climb courses with poise and precision.