Setting up a 2 point Humvee

Locate an image

First, locate an image of a vehicle. Find one that you can see how 2 point perspective could be applied. If you are new to this, find one with minimal curves, like a jeep or a truck.

Grid and redraw the image

Print the image, and draw a grid over the image.

Redraw your grid on a sheet of paper at a different size.

Roughly draw to establish the general shape of the vehicle.

Add the horizon line and vanishing points.

This will help re-enforce the dimensionality and accuracy of your drawing.

Note: You might need to attach extra sheets of paper to extend your drawing area to accommodate distant vanishing points.

Make the grid, horizon, and VP’s on a base sheets of paper taped together, then taped to the desk or a drawing board.

Make the vehicle drawing on tracing paper.

Wheel guides

Do this on a separate tracing overlay.
Make the perspective box around the vehicle, including the tires in the area. The purpose of this will be to increase the accuracy and confidence of the drawing.

For clarification:

Be aware that we are situating a box outside the tires, so tires on the distant side will be inside our box. It will make sense as you do it.

Make your best guess where you think the axles are, from wheel centers to vanishing point.

Make ellipses with the minor axes aligned to the axles. This will require varying the ellipse degree to fit the ellipse in the box region, always keeping the minor axis aligned to the axle.

Check your ellipses ... draw a vanishing point through each wheel center, and a vertical line ...

then, note the intersection of each point ... if they wheels line up by touching the edges of the perspective box, then you are in good shape ... if not, make adjustments in the ellipse degree.

Keep in mind, this is to help you determine the degree of the ellipse, as well as align the minor axis to the axle.

This shows the perspective box and ellipse guide alone:

This shows the various faces of a tire. The minor axis of each ellipse is aligned with the axle, but, the degree of the ellipse changes, as well as its position, according to its depth position.

Keep in mind you might not have an unlimited range of ellipse guides, so you might not be able to draw the ideal version below ... try difference degrees and get as close as you can. Your drawing might not be exactly the same as the photo, due to lens distortion, but it will be just as correct.

Play with the tires ... you might need to make a few tries at it until you get a feel for it ...

Following this, simply pull together your drawing of good wheels and the car body and refine the drawing on your vehicle onto one drawing or tracing sheet. Add shadows, etc.

The drawing can benefit from further corrections, tone, line weight, addition of environment, etc.