The Cobra Experience, Martinez, California; The Cobra Experience is a non-profit museum committed to the promotion, conservation, education and preservation of the cars produced by Shelby American. Unique to our museum is the 7.2 surround sound HD film not only about the … [Read more...] about 1968 Paxton Supercharged Shelby Cobra GT350 Convertible – or – $75,000 Sweepstakes