Did you go to the web site listed above?
Mustang35th : Facts and Figures Page
ALL 1999s are 35th Anniversary Mustangs and have the 35th Anniversary badge on the front fenders. Of the 126,067 Mustangs built in the 1999 model year, 4,628 were "Limited Edition" Mustangs. The LE package was a $2,695 option for GTs only.
Total Production: 4,628
Coupes 2,318
Convertibles 2,310
Limited Editions came only in White, Black, Silver, or Performance Red.
Performance Red 1,555
Black 1,299
Silver 1,259
Crystal White 515
Exterior Features of 1999 Mustang LE:
hood scoop, black applique on hood, black honeycomb between tail lamps, 17" X 8" bright machined 5-spoke aluminum wheels
Interior Features
Midnight Black leather/vinyl seats with silver leather inserts and "Pony" logo, Midnight Black carpeted floor mats with 35th Anniversary logo, instrument cluster with gray mask and 35th Anniversary script, silver leather door trim inserts, aluminum shift knob.
The most notable differences are the hood (except some people change them
) and the wheels (except some people change them too!
) and the two-tone black and silver seats. If your car has these, it's prob an LE