Photoshop :: Neon Body Kits

I have a major project to do. I'm doing a brochure for a client who is unable to provide high res stock photos (the manufacture refuses to give them out) of nean body kits for cars. My task is to create/emulate the look and feel of a TRUE neon body kit glow from below a car.

I've done one before for the web, but it did not turn out as great as I wanted. Before I dive in again I'd love some feedback on what everyone here thinks would be the best approach for this. What filters, techniques, reflections,