A suspension superstructure adapted to be mounted to a dune buggy space frame, the space frame having a base frame and configured to support right and left dune buggy wheels at a first track width, the superstructure comprising: right and left frame brackets adapted to be coupled to the base frame; a bridging plate adapted to be connected to the right and left frame brackets; a bumper panel; and right and left wheel control arm supports mounted between the bridging plate and the bumper panel that support control arms of right and left dune buggy wheels so that the wheels have a second track width greater than the first track width.
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