Step #1
Draw two rectangles as shown.
Step #2
Draw a circle & the support shape.
Step #3
Draw the shape as shown.
Step #4
Re-draw the support.
Step #5
Draw two double border circles.
Step #6
Draw triple border square & draw six double border circles.
Step #7
Enhance the drawing as shown.
Step #8
Draw design inside the circles.
Step #9
Draw double border circle.
Step #10
Draw the tire ring and center.
Step #11
Draw muzzle.
Step #12
Do touch up to finish.