Maybe it's just me, but I don't remember seeing SportDesign as an option package the last time I checked KBB for MY04 IS300 pricing. Well it's there now:
The weird part though is that when you try to add it it makes you add a bunch of other things including another $1500 for power&leather package, so REALLY it's $3180, not $1715.MODEL OPTION
S* SportDesign Edition • Sedan
(N/A Hatchback) (Req's Wheels-TS or TU) (Req's Black or Grey Interior Color) (This Option is Coded SE, SF, SG, SH, SI or SL)
All Models Include Leather Surfaced Seat Trim, Dual Power Seat Adjusters w/Driver's Memory, Power Moon Roof, Garage Door Opener, Unique Grille, Titanium Trim, Black Pearl Emblems & Unique Carpeted Floor Mats.
Model w/Manual Trans. Includes All Models Equipment Plus Euro-Tuned Suspension. 1,543.00 1,715.00