okay new tutorial!
this time i will show you guys how to lower a chop without making any bad looking spots!
#1) carefuly select around the bottom of the car, around the inside of the wheel arches as possible, and as close to the paintwork as possible DO NOT select the wheels.
#2) go over the boader of the picture, into the grey area surounding the picture, and then end the selection with the start under the car.
#3) use the move tool to move the selected area down perhaps 1 MMto 3 CM down, and sometimes it looks more realistic if you use the free transform (Control + T) and tilt the car to sit better over the wheels.
depending on the car, lower accordingly for the chop.
#4) if there are background colour dis-figurations, (where you moved the body away from, just paint/air brush the colour black into that area if its in the wheel arch, or the body colour if its in the body.
#5) find any bad looking spots and empty places, such as in between the rear body and the wheel, and airbrush/paint the black in there aswell, that way it dosent look like the body kit is just on the sides.
FIN! well done, you have just lowerd the car, for that unique look!