Shadowcourse Longtail Program

480mm extended wedge nose with flat splitter (1300mm wide
180mm forward extension)
Twin vertical dive planes (150mm tall) for front balance and yaw stability
Full-length side skirts forming an 85mm aerodynamic shelf with rearward rake
Seven-fin rear diffuser panel with central stability fin and restrained single-element rear wing

This is an aerodrome-runway weapon: long straights, crosswinds, and high-speed transitions where yaw stability and cooling consistency matter more than peak grip in a hairpin. The longtail and covered wheels are aimed at making the Santa Cruz feel calm past speeds where the stock body would start fighting the air.

18x10 Enkei RPF1 (matte graphite) square setup
295/30ZR18 Michelin racing slicks for flush wheel-cover clearance
Race alignment with aggressive camber and widened scrub geometry tuned for stability
Ultra-low ride height: ~30mm front splitter / ~40mm rear diffuser ground clearance (track-only)

Front-mid layout: V6 relocated rearward behind the front axle for improved polar moment
Sidepod-fed intercooler and radiator packaging to reduce frontal openings
Dedicated oil cooling routed toward the tail volume for thermal consistency on long runs
Endurance calibration focus: sustained load
heat management
and stable boost control

Aluminum structure with localized carbon reinforcement at splitter
wheel covers
sidepods
and diffuser
Modular aero panels mounted with Dzus fasteners for rapid service access
Wheel-cover inner clearances designed around 295/30R18 slick envelope and steering sweep
Rear suspension pickup revision to stretch wheelbase ~+85mm while maintaining driveline angles

Shadowcourse Longtail takes the 2022 Santa Cruz and treats it like a wind-tunnel mule from the Group C era: covered wheels, a hard wedge nose, and a rear deck that just keeps going. The pickup profile is still readable in the cabin and beltline, but everything behind it is re-authored for low drag and calm high-speed behavior—wide track, longtail taper, and clean separation edges instead of visual noise.

The engineering story is simple and believable: move mass rearward, seal the underbody, and let the aero do the work. A front-mid powertrain shift, sidepod cooling, and a ground-effect-friendly ride height turn the Santa Cruz into an endurance-style study vehicle—more Mulsanne stability than street-truck theatrics, finished in satin graphite with exposed carbon where it matters.