Check Amazon or Ebay for find performance parts but do brand research before you buy. I've never seen a modified Captiva. If it were my car and I wanted to change the appearance, I would tint the windows and put rims on it. As for maintenance at 82k, I would flush fluids, change the spark plugs and serpentine belt if they haven't been done, along with fresh headlight and taillight bulbs. I personally hate changing a headlight bulb unexpected.