For $11,100 more you get a very trick suspension set-up; which entails Dynamic Suspensions remote reservior dual adjustable shocks and stiffer springs. This shock system,etc. is distributed by Carl Haas, Inc. ( Michael Andretti's old boss and Paul Neumans partner ) and has even more range of adjustment for compression and rebound than the previous Koni's. The front driving lights are removed and a plastic faceplate is installed. This is so folks can set up airducts for the brakes, but most feel it is ineffective to do this way. You do get smooth tubes, K&N's, 5 point harnesses, dash plaque, and decals. The $11,100 includes a/c and cd/stereo , as virtually none are ordered without adding back the comfort group - radio & A/C. Last, but not least, you get the ACR rims designed by BBS. They built 218 of these in 2000 and I believe 210 in 1999. Hope this is helpful.