Pontiac G-Body
Master Customs concentrates Pontiac coverage on the Grand Prix and the NASCAR-homologation 2+2, while keeping the Bonneville G and other Pontiac G-body variants in supporting platform context.
Grand Prix first.
Pontiac used the rear-drive intermediate architecture for more than one model, but the personal-luxury Grand Prix is the branch that best fits Master Customs: two-door styling, enthusiast modification potential, a direct connection to the 1981 Grand Prix LJ build, and the outrageous 1986 2+2 homologation special.
Pontiac Grand Prix
The complete G-body-era Grand Prix guide: Base, LJ, SJ, later LE/Brougham evolution, year chronology, factory powertrain context and modern project-car considerations.
Open Grand Prix guide → 1986Grand Prix 2+2 Aerocoupe
The Pontiac NASCAR homologation special with the long sloping rear glass, shortened deck, aero nose and one of the strangest factory silhouettes of the G-body era.
Open 2+2 deep dive → TECHPontiac G-Body Powertrains & Tech
Engine-family context, transmissions, chassis commonality, parts verification and the difference between a Pontiac-bodied car and a Pontiac-built engine.
Open tech guide →Bonneville stays in context—not in the spotlight.
1982–1986 Bonneville G
The rear-drive Bonneville G sedan/wagon is part of the same broader platform story and helps explain Pontiac’s use of the architecture beyond the Grand Prix. It remains supporting reference material rather than receiving a stand-alone model library.
Why the distinction matters
Master Customs is not trying to catalog every GM intermediate. The Resource Center prioritizes the cars enthusiasts modify, search for and preserve while still documenting the platform relationships needed to understand parts, chassis and production history.
1981 Pontiac Grand Prix LJ
The factory guide explains what a 1981 Grand Prix LJ was. The My Builds page separately documents your specific car and its 1987 Buick Grand National drivetrain.
Factory reference ≠ personal build
Use the model guide for original configuration and period context; use My Builds for the actual Master Customs car.
Open the 1981 Grand Prix LJ build →Master Customs treats period factory literature as the baseline and separates factory configuration from enthusiast modification. Model-year equipment can vary by engine, trim, emissions calibration, assembly plant and RPO. The 1986 Grand Prix 2+2 is a useful reminder that reputable secondary sources sometimes disagree on production totals and even advertised output; where that happens, Master Customs flags the discrepancy instead of presenting one uncertain number as settled fact.