Independent · Source-led · American performance history Issue 01 · 1951–2023
American Muscle Car Facts

Showroom arguments.
Race-bred answers.

General Motors option code

AR1  — Less Head Restraint

AR1 (Less Head Restraint): a General Motors factory option code recorded on 1 model across 1969, with installs and price where a source states them.

1 model · 1 model year · 1 source

Orange 1969 Chevrolet Chevelle SS 396 two-door hardtop with a black vinyl roof and black side stripe, front three-quarter, with SS 396 grille and fender badges and SS wheels
1969 Chevrolet Chevelle SS 396 sport coupe in Hugger Orange with a black vinyl top Photo: MercurySable99, CC BY-SA 4.0, via Wikimedia Commons

Every sourced appearance

Year Model As named that year Price Installs
1969 Chevrolet Chevelle and Malibu SS Less Head Restraint RPO Unknown 774 Reported

Every row traces to the source it links from on that model's own year page; this table only collects them in one place.