Original photo:

Overlay tracing paper and mark major lines, wheels, axel lines, center line, overhangs, hood, roof:

Remove photo:

Sketch your own design, mine sucks, sorry:

Here's my crappy sketch from a photo overlay.

I had to cheat a few things to make it look right.

Same thing applies for overlaying a sketch.

Jamie Seymour

Overlay Tutorial

 

Jamie took the time to make a great tutorial showing how to use an underlay in setting up your drawing.

If you want to thank Jamie go here and post a reply.