1991 Mustangs were the same as 1991 models. Nothing that stood out all that much.

PRODUCTION NUMBERS Hardtops - 19,447 Hatchbacks - 57,777 Convertibles - 21,513 TOTAL - 98,737	VIN NUMBERS  -  1FABP42E6MF000001 1FA - Ford Motor Company B - Active Belts P - Passenger car 42 - Body Code (40=LX, 41=Hatchback LX, 42=Hatchback GT, 44=Conv. LX, 45=Conv. GT) E - Engine Code 6 - Variable digits M - 1991 ("M" stands for 1991) F - Assembly Plant (F=Dearborn) 000001 - Consecutive unit number
BASE PRICES Hardtop LX - $10,702 Hatchback LX - $11,208 Hatchback GT - $15,579 Convertible LX - $16,767 Convertible GT - $20,409	ENGINES/ENGINE CODES S - 2.3L 1V 4-cyl. with 88hp E - 5.0L V-8 with 225hp
FACTORY OPTIONS - Cast Aluminum Wheels - Speed Control - Rear Window Defroster - AM/FM Radio with Cassette Player - Cargo Tie down net - Front Floor Mats (Not all Options are included)	INTERIOR COLORS/INTERIOR TRIM CODE - Titanium      Cloth = FA, Vinyl = BA      Cloth&Vinyl = DA, Leather = CA - Crystal Blue      Cloth = FB, Vinyl = BB - Scarlet Red      Vinyl = BD, Cloth&Vinyl = DD - Black      Cloth = FJ, Vinyl = BJ, Cloth&Vinyl = DJ - White/Titanium      Vinyl = BL, Leather = CL - White/Red      Vinyl = BN, Leather = CN
EXTERIOR COLORS/COLOR CODE Medium Red - EM Wild Strawberry - EL Bright Red - EP Light Crystal Blue - MA Twilight Blue - MK Black - YD Deep Emerald Green - YF Medium Titanium - YG Oxford White - YO Titanium Frost - YX