01
Technical DrawingBlueprint archive
R156
Crimson Silhouette Protocol
Crimson Silhouette Protocol takes the 2005 Buick Rendezvous—peak suburban appliance—and rebuilds it as a Group 5 Super Silhouette homage that still reads unmistakably “Rendezvous” from 50 feet. The greenhouse stays tall, the beltline stays honest, but everything below it is re-architected: squared box flares, hard edges, and exposed aero that turns family-car proportions into a legitimate circuit weapon.
The attitude is pure late-’70s/early-’80s: exaggerated width, brutal cooling, and a livery that looks like it rolled out of a paddock full of cigarette-stained clipboards and tire carts. It’s not a joke build—it’s a track-width monster with real ducting, real downforce hardware, and the kind of stance that only makes sense when the stopwatch is the only judge.
Release Image Studies
Image studies from every angle.
Comparison Shots
Blueprint / Collector Archive
Engineering Artifacts
The technical study and collectible interpretation of one build, preserved together.
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Crimson Silhouette Protocol Collector EditionCollector artifact
A presentation-grade collector artifact created for this release and preserved as part of the Widebody Syndicate archive.
Selected archive goods are available for collectors.
2005 Buick Rendezvous Crimson Silhouette Protocol Collectible Poster
Price range: $18.00 through $25.00
2005 Buick Rendezvous Crimson Silhouette Protocol Blueprint Poster
Price range: $18.00 through $25.00
2005 Buick Rendezvous Crimson Silhouette Protocol Framed Collectible Poster
Price range: $37.00 through $75.00
2005 Buick Rendezvous Crimson Silhouette Protocol Framed Blueprint Poster
Price range: $37.00 through $75.00
Technical Dossier
▧
Platform
2005 Buick Rendezvous
Buick’s 2005 Rendezvous is pure early-2000s American crossover energy: a front-drive-biased, V6-powered family hauler built when the segment was still figuring itself out. It blends minivan practicality with SUV proportions—long roof, tall glasshouse, and a cabin-first package that’s more about road-trip comfort and cargo space than chasing lap times.
In the context of modern car culture, the Rendezvous sits in that quietly fascinating zone of overlooked platforms—honest, utilitarian, and instantly period-correct. Its soft, rounded surfacing and high seating position make it a time capsule of GM’s pre-crossover-boom thinking, the kind of daily-duty base that’s recognizable in any parking lot and grounded in real-world use.
⌘
Aero Package
240mm-projection multi-plane carbon splitter with tall vertical dive planes and corner canards
Stepped side skirts with integrated side air tunnels feeding mid-chassis cooling
Full-width rear diffuser with multi-strake layout and long overhang for underbody expansion
1800mm dual-element wing on swan-neck uprights with adjustable flap
⟡
Chassis
Set at dawn on a historic European circuit, the Rendezvous looks wrong in the best way—tall roofline, brutally wide hips, and aero that casts sharp shadows across the tarmac. The scene sells the intent: this isn’t a showpiece, it’s a silhouette car that belongs in pit lane with tire warmers and a clipboard.
◎
Wheels & Tires
Front: 18x11 forged center-lock wheels with 335/30R18 semi-slicks
Rear: 18x12 forged center-lock wheels with 345/30R18 semi-slicks
Motorsport hubs/center-lock conversion with endurance-grade studs, bearings, and brake hat interfaces
15mm static arch-to-sidewall clearance targeted for compression and alignment change under load
▤
Powertrain
GM LS-based V8 swap (6.2L architecture) tuned for track reliability and broad torque
Dry-sump oiling and baffled fuel system to survive sustained lateral load from the widened track
High-capacity cooling: front radiators plus auxiliary heat exchangers fed by side tunnels
Motorsport ECU with data logging and fail-safes for coolant/oil pressure and IAT
△
Fabrication Notes
Widebody built as a silhouette shell: boxed flare structures tied into inner arches and cage nodes
Splitter and diffuser mounted to chassis hardpoints with serviceable quick-release interfaces
Ducting is sealed (not decorative): brake inlets, fender extraction, and roof evacuation paths
Suspension pickup reinforcement and corrected geometry to match the 300mm track increase
×
Design Philosophy
Crimson Silhouette Protocol takes the 2005 Buick Rendezvous—peak suburban appliance—and rebuilds it as a Group 5 Super Silhouette homage that still reads unmistakably “Rendezvous” from 50 feet. The greenhouse stays tall, the beltline stays honest, but everything below it is re-architected: squared box flares, hard edges, and exposed aero that turns family-car proportions into a legitimate circuit weapon.
The attitude is pure late-’70s/early-’80s: exaggerated width, brutal cooling, and a livery that looks like it rolled out of a paddock full of cigarette-stained clipboards and tire carts. It’s not a joke build—it’s a track-width monster with real ducting, real downforce hardware, and the kind of stance that only makes sense when the stopwatch is the only judge.
▧Platform+
2005 Buick Rendezvous
Buick’s 2005 Rendezvous is pure early-2000s American crossover energy: a front-drive-biased, V6-powered family hauler built when the segment was still figuring itself out. It blends minivan practicality with SUV proportions—long roof, tall glasshouse, and a cabin-first package that’s more about road-trip comfort and cargo space than chasing lap times.
In the context of modern car culture, the Rendezvous sits in that quietly fascinating zone of overlooked platforms—honest, utilitarian, and instantly period-correct. Its soft, rounded surfacing and high seating position make it a time capsule of GM’s pre-crossover-boom thinking, the kind of daily-duty base that’s recognizable in any parking lot and grounded in real-world use.
⌘Aero Package+
240mm-projection multi-plane carbon splitter with tall vertical dive planes and corner canards
Stepped side skirts with integrated side air tunnels feeding mid-chassis cooling
Full-width rear diffuser with multi-strake layout and long overhang for underbody expansion
1800mm dual-element wing on swan-neck uprights with adjustable flap
⟡Chassis+
Set at dawn on a historic European circuit, the Rendezvous looks wrong in the best way—tall roofline, brutally wide hips, and aero that casts sharp shadows across the tarmac. The scene sells the intent: this isn’t a showpiece, it’s a silhouette car that belongs in pit lane with tire warmers and a clipboard.
◎Wheels & Tires+
Front: 18x11 forged center-lock wheels with 335/30R18 semi-slicks
Rear: 18x12 forged center-lock wheels with 345/30R18 semi-slicks
Motorsport hubs/center-lock conversion with endurance-grade studs, bearings, and brake hat interfaces
15mm static arch-to-sidewall clearance targeted for compression and alignment change under load
▤Powertrain+
GM LS-based V8 swap (6.2L architecture) tuned for track reliability and broad torque
Dry-sump oiling and baffled fuel system to survive sustained lateral load from the widened track
High-capacity cooling: front radiators plus auxiliary heat exchangers fed by side tunnels
Motorsport ECU with data logging and fail-safes for coolant/oil pressure and IAT
△Fabrication Notes+
Widebody built as a silhouette shell: boxed flare structures tied into inner arches and cage nodes
Splitter and diffuser mounted to chassis hardpoints with serviceable quick-release interfaces
Ducting is sealed (not decorative): brake inlets, fender extraction, and roof evacuation paths
Suspension pickup reinforcement and corrected geometry to match the 300mm track increase
×Design Philosophy+
Crimson Silhouette Protocol takes the 2005 Buick Rendezvous—peak suburban appliance—and rebuilds it as a Group 5 Super Silhouette homage that still reads unmistakably “Rendezvous” from 50 feet. The greenhouse stays tall, the beltline stays honest, but everything below it is re-architected: squared box flares, hard edges, and exposed aero that turns family-car proportions into a legitimate circuit weapon.
The attitude is pure late-’70s/early-’80s: exaggerated width, brutal cooling, and a livery that looks like it rolled out of a paddock full of cigarette-stained clipboards and tire carts. It’s not a joke build—it’s a track-width monster with real ducting, real downforce hardware, and the kind of stance that only makes sense when the stopwatch is the only judge.
Part of
Wave 26
Time Attack Everything: Vol. 2
We just cranked the time attack dial all the way to eleven. Our builds slam classic chassis and overlooked platforms into a parallel universe where track dominance isn’t just a goal — it’s a mandate stamped in carbon fiber and forged metal.
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