well, like make sure your engine bay isn't crowded with hoses and dirty and such - tuck the engine bay, if you repaint the outside of the car, don't skimp on the engine and such. Do something that is different than all the other Altima's out there - try to be ahead of the curve. Make sure you car has no rust ( even on the frame rails ) and don't overdo things. Don't have color's clash. And try to have an all around package ( looks, speed, suspension, rollers ) - even with that said, there is no guarantee what so ever that you will get a sponsorship, but if you do it right, and start winning at some shows and what not, then you just might