Which paint to use.

I don't have any personal experience with Crossfire. I believe it is an "economy" or "value" line of automotive paints from Martin Senour, carried by most NAPA stores. I also understand that Martin Senour products are basically re-branded Sherwin Williams products. I would expect that Crossfire paints are similar in quality and price to the economy lines of PPG (OMNI) and DuPont (NASON). Within any of the these lines of paints, there are different chemistries available - typically acrylic enamel and acrylic urethane in single stage and basecoat color plus clear(s) for two stage systems. I have found in the PPG economy OMNI line that the MTK acrylic urethane provides good value for the money spent, at least for tractor work or overalls. I would not use any of the economy line paints from any manufacturer if I were painting just a single panel on a car and expected a excellent color match to the adjacent OEM paint. You don't get something for nothing. If you are color-matching on a car, you want something in the premium lines ($$$) from any of the major automotive paint manufacturers. If you are comparing paints between manufacturers, be sure you compare similar products; e.g. same chemistry, same line. Do not compare the price of an economy line product from one manufacturer with that of a premium line product of another. Also do not compare the price of an economy acrylic enamel with that of an economy acrylic urethane, even from the same manufacturer. Whatever paints you are evaluating, get the specific technical data sheets from the manufacturer's web sites. The usage information will likely be different (even for similar paints) and the details may have an influence on your decision.

Rod