1991 Ford Mustang Facts

Overview

• Ford built 98,737 Mustangs for 1991 by MustangSpecs' internally reconciling body/series breakdown; the exact Wikipedia revision citing Standard Catalog of American Cars, 1976-1999 instead reports 90,385, an 8,352-unit disagreement that remains unresolved.
• The 2.3L four-cylinder gained dual-plug cylinder heads and a 105 hp rating.
• Five-spoke 16-inch pony wheels became a signature late-Fox visual cue.

Production Breakout

MustangSpecs' three-row body/trim table sums to 98,737. The exact Wikipedia revision, citing Standard Catalog of American Cars, 1976-1999, reports 90,385. The source-lineage difference is unresolved; the table below follows the internally reconciling MustangSpecs split.

Engines & Power

Specifications

• MustangSpecs reports 179.1-inch overall body length, 69.1-inch width, 52.1-inch height, and a 100.1-inch wheelbase -- identical to the corroborated 1986-1990 figures.
• Reported curb weights: Hatchback 2,791 lb; Notchback 2,722 lb; Convertible 3,044 lb -- identical to the corroborated 1986-1990 figures.

Options & Packages

Counts distinguish verified production records, attributed reports, disputed figures, announced limits, and figures that do not survive in available records.

Buyer Identification

• For 1981-up Fox cars, decode the 17-character VIN, door certification label, buck tag, axle tag, transmission tag, and build sheet/window sticker. The VIN and body code identify the shell, but equipment such as LX 5.0, GT, SVO, SSP, Saleen, Feature Car, or Cobra needs package documentation.
• Because Fox Mustangs are frequently modified, confirm engine code, factory paint and trim, emissions label, wheel/brake/suspension equipment, and serialized records for Saleen/SVO/SVT/SSP cars before paying collector money.

Special & Tuner Models

Related Stories

Additional Notes

• Fox-body paint and trim codes are on the door label, while special identity often depends on package paint: Pace Car pewter/black/orange, 1984 G.T.350 Oxford White/Canyon Red, 1990 Emerald Green 7-Up convertibles, 1992 Vibrant Red Feature cars, 1993 Chrome Yellow or Vibrant White Feature cars, SSP agency paint, Saleen serialization, and SVO/Cobra details should be checked against tags and paperwork.
• The 1991-1993 pony wheel look became one of the most copied details in Fox-body restoration.
• The Fox-to-SN95 survival story is inseparable from Ford's abandoned front-drive Mustang replacement plan.
• The 16-inch Pony wheel became one of the signature late-Fox visual cues and helped the LX 5.0 look more upscale without GT body cladding.
• The 1991 Mustang's appeal is often in the details: color, axle, roof, wheel, and transmission choices can matter more than year-specific sheetmetal.
• Late Fox convertibles had moved from novelty comeback to established showroom choice by 1991, giving the 5.0 era a strong open-air branch.