The red to orange was easy..... if you care to know.... and are using Photoshop.....go up to the menu bar at the top and click image....then click adjustments....I think about halfway down you'll see replace color.....a little box will pop up. you'll see the cursor change to the color picker looking thing and click on the red, now you can mess around with the sliders in the box and change it to any color you wish.......as far as the black went, I actually used different shades of grey and the brush tool, using between 25-50% opacity on the brush.....
there is a little more to it, but that will atleast give you a headstart...but hey..."A" for effort!!!!
Oh and yes I know he wanted the car done not the bike... !!!!