The Excalibur automobile
from Milwaukee, Wisconsin, was a car styled after the 1928 Mercedes-Benz SSK by Brooks Stevens for Studebaker. Stevens subsequently formed a company to manufacture and market the cars, which were conventional under their styling. A prototype premiered at car shows in 1963, fitted on a Studebaker chassis and using a 290-horsepower Studebaker 289 V-8. Studebaker subsequently ceased its operations, ending the availability of its 289 V8. General Motors friends Ed Cole and "Bunkie" Knudsen agreed to provide Brooks Stevens with Chevrolet 327s in 300-bhp Corvette tune, making the 2100-pound Excalibur a strong performer. With the standard 3.31:1 rear axle, acceleration from 0-60 mph took less than five seconds. Projected top speed was 160 mph.