Superformance Shelby GT40

Superformance acquired drawings and templates from Kar Kraft and started production on their GT40 in 2004. Metal roof panels and chassis components are stamped in house. The chassis is then fully assembled and welded on custom laser aligned jig. Nose, tail, doors and side sill covers are hand laid fiberglass. Suspension A-arms are tig welded and upright castings are 5-axis CNC machined in house. The GT40 is built under license from Safir GT40 Spares and is included in the SAAC registry. Some creature comforts like air conditioning and leather interiors were added. 

Dennis Olthoff tested the first production GT40 in 2006 in South Africa validating shock and spring combinations that would be suitable for street and track use. 

The first 6 dealer demonstrator cars were completed at Olthoff Racing with Roush crate engines and ZF transaxles. We have completed over 200 GT40 rollers at our facility. 

We can supply anything from street to full FIA vintage specification race cars.

Key Features: 

Authentically crafted Shelby GT40, listed in the SAAC registry 

All-new chassis and metal roof panels, precision-stamped and welded in-house 

Hand-laid fibreglass construction for the nose, tail, doors, and side sills 

Suspension features TIG-welded A-arms and in-house CNC-machined uprights 

Independent suspension engineered for superior track and street performance 

Designed to accommodate Roush crate engines and ZF transaxles 

Available in both street-ready and full FIA vintage race specifications 

Optional amenities include air conditioning and premium leather interiors 

Shock and spring setups validated for versatile driving conditions 

Over 200 Shelby GT40 rollers completed at the Superformance facility 

Johnny Corbett

My cousin and I recently picked up his Superformance Cobra after service work. We had a part failure on the trip home. Dennis, Scottie, and crew were very responsive and came out to pick up the car. After a short delay for new part installation, we were back on the road home. Clearly, these guys have passion for the cars and take pride in their work. I would highly recommend them to anyone in the market for AC Cobras, GT40s, Daytona Coupes, and for service work on your classic race cars.

Stan Meyer

Always have time to visit with the gang at Olthoff Racing! How can you not be in awe of the many Cobras, Daytona Coupes, Mustangs and more! What a treat!

Caleb P

Olthoff racing is a crew of really great people. Definitely a go-to if you need any high end classic, shelby, or GT40 work or leads!

Russell Jones

I’ve dealt with Dennis and his crew for years! Their passion for their cars and services shows each time I’ve dealt with them.. I bought my “Cobra” from them recently and couldn’t be happier with the car or the service.. Ask for Scottie!

Russell Jones

This place is awesome. Love seeing replicas pieces of race history

Charlie Stroebel

This place is neat if you like cobras and you like gt40s this is a place to go to they will actually build you a cobra there.

DIA RIVERS

Clean. Employees are kind and knowledgeable. Awesome cars

Brian Gray

This place is awesome.. I wish I could just live there.

Address

Olthoff Racing
150 Cobra Lane
Mt. Ulla, NC 28125

Phone

704-647-9924

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