Apart from the rims and the body kits etc. what sort of mods/items have you made or added that have made your driving experience better?
Replaced sub-par OEM interior incandescent lighting with much brighter LEDS. Replaced OEM halogen low-beams with HID system. Husky cargo liners all around. Euro-style mud flaps. Winter tires on dedicated rims. Body side door moldings. TRD oil filter. Magnetic oil drain plug.
I added the turn signal mirrors with pilot light/entry lighting just because I thought and still think it is lame they don't include them on Prius and I do like the pilot/entry lighting.