I don't know about this.. but on my xB, I painted the stock tails red with Testor's Candy Apple Red Clearcoat model paint specifically for doing tail lights on model cars. There might be something blue available. I don't work at the model train store anymore so i can't really dig. Check it out.. and to keep from running i airbrushed it on
(and held up in Florida Sun)
hope that helps a little.. sorry if it doesn't