High Voltage Software spent over a year creating "Lego Racers"' car building mechanics. The game's lead programmer, Dwight Luetscher, created a formula that was used by the game's artists to create individual Lego elements in the game. The pieces available to the player were selected from hundreds of Lego elements by the developers, chosen first by aesthetics, and then analysed to see if they would fit into Luetscher's formula. The developers chose to affect the attributes of the player's car, such as handling, acceleration and top speed, through how many bricks are placed on the chassis, as this is simpler to understand for the game's main age demographic.