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2007 Ford Mustang GT
Media library
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Original Build Studies
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Ladies of WBS Gallery
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Rally Rogue takes a ’75 Oldsmobile Delta 88—built to float down interstates—and drags it into an alternate WRC rulebook where size is a weapon. The long-roof sedan silhouette stays intact, but everything around it is purpose-built: squared 160mm-per-side flares, a widened track, and a ride height that clears ruts without giving up steering precision.
Under the dust it’s real engineering, not cosplay: long-travel suspension with reinforced pickup points, hard underbody protection, and cooling that matches sustained stage abuse. The big Olds presence becomes an advantage—stable at speed, predictable in long corners—while the details read like a service-park car that’s been rebuilt between rallies, not a showpiece.
Blueprint
The Whitepaper Room
Inspect drawing ↗Open blueprint study →Collectible Poster
Collector's Edition
Inspect poster ↗Technical dossier
Fictional engineering concept
Platform
1975 Oldsmobile Delta 88 Sedan
Powertrain concept
Turbocharged 2.0L inline-4 rally unit targeting ~320 hp with broad midrange torque
Reinforced transmission with close ratios for stage work and stronger final drive
High-capacity intercooler and ducted radiator package for sustained heat load
Motorsport-style baffled sump and oil cooling to survive long, high-G sections
Aero package
Front arch-top louvers for brake cooling and turbulent air extraction
Flat undertray transitioning into a functional rear diffuser channel
Tall, dual-element adjustable rear wing mounted to reinforced chassis outriggers
High-clearance front splitter lip integrated into skid plate geometry
Chassis & stance
1975 Oldsmobile Delta 88 Sedan
Wheels & tires
BBS RM17-style center-lock wheels: 17x9 ET+25 front, 17x10 ET+20 rear
Toyo Open Country rally-spec rubber: 265/70R17 gravel-focused fitment
60mm front / 70mm rear effective offset push for stability and scrub-radius control
Oversized brake package with gravel shields and high-temp pads
Fabrication notes
Front and rear suspension pickup points gusseted; subframe ties added for impact resilience
Inner fenders reworked to match flare volume while maintaining wheelhouse sealing
Wing loads routed into chassis outriggers, not sheetmetal, to prevent fatigue cracking
Skid plates mounted on serviceable brackets for fast replacement between stages
Keep exploring
Different origins. Forgotten Cars
2006 Scion xB
Redwood Rally Forge
Continue the exhibitionWhat if WRC Allowed This: Vol. 1We just went full mad scientist on rally cars that never got the memo about what’s allowed.Build 4 of 6↗