try atkins, it has really helped alot of people.
i'm just kidding
well you have to let us know if you plain on drive it daily. cause if not you could strip the interior, take out the a/c, rip out the dash and put in a sheet metal one. go with all lighter upper and lower control arms, alumin drive shaft, pull all of your windows out and replace them with speedglass or lexan, do a whole alumin. engine. change every exterior body panel for a fiber glass or carbon fiber. lighter rims, acid dip the whole uni-body. take out gas tank and replace with fuel cell.
i might of missed something, but that should have you flying in the wind.