While the Firesweep featured DeSoto's signature tailfins, the front clip (the front section, forward of the firewall) was based on the Dodge Coronet. The most telling feature was the headlight design, housed under heavily chromed lids typical of Dodge.
The Firesweep incorporated DeSoto's signature tailfins, but its front end borrowed from the Dodge Coronet. Notably, the headlights were positioned beneath chrome-plated lids reminiscent of those found on Dodge vehicles.