another option, Cunifer. A copper nickle alloy, DOT approved, has the cool bronze color, is rust/corrosion proof, flares like butter and is rated for hydraulic and fuel systems. Not cheap, but its great stuff.
http://www.fedhillusa.com/
also, copper lines will corrode to hell , especially with the chemicals put on the road these days. Not a good choice, and the same for aluminum. For a race only car, sure aluminum can work, but anything on the street it would be a bad choice.