SD Engineering Inc in El Cajon, CA is the home of Rock West Racing, a company dedicated to preserving automotive history through their line of kit cars. With a focus on iconic models like the 356 Speedster, 550 Spyder, and 718 RSK, Rock West Racing offers enthusiasts the opportunity to own a piece of automotive heritage.
Since 1978, Thunder Ranch has been at the forefront of kit car design and fabrication, and although the business no longer exists, Rock West Racing is committed to preserving the historical significance of the site. Their fiberglass-bodied cars have set automotive standards, making Thunder Ranch a name synonymous with quality and craftsmanship in the kit car industry.
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