Blackbird Time Attack Protocol

2008 Chevrolet HHR

R066

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Story

The Blackbird Time Attack Protocol reimagines the 2008 Chevrolet HHR as a focused, aerodynamic weapon for time attack circuits. Drawing inspiration from the SR-71 Blackbird’s stealth and aerodynamic innovations, this build aggressively widens the chassis by over 220mm to accommodate ultra-wide 310/625/18 semi-slick tires, while integrating sharp chined edges and advanced airflow management features like NACA ducts and vortex-generating dive planes. The satin matte black finish with subtle charcoal geometric patterns enhances its menacing presence, marrying function with a stealth fighter aesthetic.

Under the hood, a turbocharged 2.0L inline-4 powers the rear wheels through a sequential 6-speed gearbox, supported by extensive cooling upgrades fed by sidepod ducts and splitter intakes. The triple-element rear wing and massive diffuser work in concert to maximize downforce and stability at speed, while the precise suspension geometry and extreme camber settings ensure the chassis remains planted and responsive on track.

Blueprint

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Collectible Poster

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Technical dossier

Fictional engineering concept

Platform

2008 Chevrolet HHR

Powertrain concept

High-performance twin-scroll turbocharged 2.0L inline-4 engine
Upgraded intercooler and radiator systems integrated with aerodynamic ducts
Sequential 6-speed gearbox with paddle shifters for rapid shifts
Rear-wheel drive layout preserved for balanced handling

Aero package

Composite front splitter with integrated vortex-generating dive planes
Triple-element rear wing on tall pylons with vented endplates
Rear diffuser extended 280mm with five vertical vortex strakes
Side skirts with concave aerodynamic shelves connecting front and rear arches

Chassis & stance

2008 Chevrolet HHR

Wheels & tires

Volk Racing ZE40 forged wheels, 18x11 front and 18x12 rear
Flow-formed rims finished in matte gunmetal gray
Michelin Pilot Sport Cup 2 semi-slick tires, 310/625/18 front and rear
Optimized suspension geometry with -4.5° front and -3.8° rear camber

Fabrication notes

Use of carbon fiber composites for hood, splitter, and aerodynamic elements
Precision box flare fabrication with stepped concave channels to control airflow
Integration of internal cooling ducts routed through sidepods and door trailing edges
Custom mounting pylons for multi-element rear wing ensuring structural rigidity