OK, street and a shared vehicle... Meaning nothing too extravagant... Got it.
Here are my suggestions....
A nice set of 18" wheels in black, gunmetal, or chrome. Or go with 20" TBSS replicas in the same color. Big enough to stand out, but have enough sidewall to not be a jarring ride. With the proper sized tire, no speedometer recalibration needed.
Add a few coats of engine paint to the calipers (please, please, please don't do red) to clean up the wheel area. Cross drilled rotors or even slotted only rotors are optional. While you are down there swap the sway bar bushings for prothane ones.
Simple mods for "instant gratification":
Paint the chrome grille strip to match body color.
Swap the rear wiper arm to 07+
Get the front door windows tinted (if legal in your area)