i had a chance to buy a 2001 GS Regal it was light green/dark grey two toned from the factory light grey leather seats(look like they never been sat on) sunroof and every option offered in 2001 this car was super super clean and rode loke a new car had like 32,000 miles but the guy wouldnt work with me on the price @ al,anyway the GS Regal is a great car i really like them but the GTP is more sportier IMO the GTP's interior is way more cleaner than the Regal i like the GP better but i am still going to get me a GS Regal tho