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Before we do any of that, lets go off and read Lou’s Pseudo 3d Page - its the main source of information (that I could find) online about how to build a pseudo-3d racing game.

Finished reading Lou’s article ? Great! We’re going to build a variation on his ‘Realistic Hills Using 3d-Projected Segments’ approach. We will do it gradually, over the course of the next 4 articles, but we will start off here with v1, building very simple straight road geometry and projecting it onto our HTML5 canvas element.

Before we get down to the implementation, lets use some basic trigonometry to remind ourselves how to project a point in a 3D world onto a 2D screen.