SH Arnolt Inc. of Chicago and Warsaw Indiana sold four different manufacturer's cars with Bertone bodies during the period 1953 to 1968.

Stanley H. "Wacky" Arnolt was a Chicago industrialist, who began importing foreign cars in the 1950's to the United States. Though sold as American cars, the cars were true hybrids, with British mechanicals, Italian bodywork, and U.S. sales and distribution, as well as in some cases final assembly and body work. SH Arnolt Inc. was a licensed automobile manufacturer in the State of Illinois.

A fortuitous meeting with Bertone at the Turin Auto Show in 1952 resulted in four collaborative efforts between Arnolt and Bertone.

Arnolt-MG

The initial price was $3145. In 1954, MG informed Arnolt that it could no longer supply chassis and engines due to demand for its own complete cars (as well as the replacement of the TD by the TF), so Arnolt began looking for a larger engined car.

Arnolt Aston

An attempt to build a Bertone-bodied Aston Martin DB2/4 and sell it as an Arnolt Aston was stopped by Aston Martin after three cars were built. There were three Arnolt Astons designed by Bertone's fresh new designer - Franco Scaglione (chassis numbers LML50/502, LML 50/505 and LML 50/507). All looked very much like Scaglione's subsequent Arnolt Bristol, having sharply creased fender lines, and were open cars without hardtops. There were four additional Bertone Astons that were commissioned at Arnolt's request and went through Arnolt's hands. These four cars are sometimes mistakenly referred to as Arnolt Astons, but are not. These were 3 roadsters and 1 coupe. All of the seven Arnolt Astons still exist. One article refers to a possible eighth car, perhaps destroyed in the Chicago fire at Arnolt's factory. The cars were fitted with Aston's 125 hp, 2580 cc engine.

Arnolt Bentley

Arnolt also had Bertone design and build a Bentley, which resembles a larger version of the Arnolt MG coupe because it was also penned by Giovanni Michelotti who was working for Bertone at the time. This car was commissioned for SH Arnolt as a personal car. Bertone built the body on a 1953 R Type Continental chassis. The car was fitted with monogrammed flasks and glasses, and a special cosmetics compartment for Mrs. Arnolt. The car was originally painted gold and fitted with tan hides.

Arnolt Bristol

Arnolt then negotiated with Bristol Cars Ltd in the UK for the purchase of 200 of their 404 series chassis and 1971 cc, six-cylinder 130 hp engines. According to an article by Wouter Melissen Arnolt needed to find a new chassis source to meet his obligation to Bertone, in whom he had invested heavily, after MG proved unable to fill the original order for 200 cars. The chassis Bristol supplied were sent to Carrozzeria Bertone where they received a highly aerodynamic body with a flowing design that allowed the minimal hood height to clear the cars' three two-barrel Solex 34 carburetors. The bodies were designed by Bertone's new designer/aerodynamicist, Franco Scaglione (soon to be famous as the designer of the Alfa Romeo B.A.T. concept cars). The very tall Bristol engine created problems for designing a sleek-looking sports car. Franco Scaglione handled these with particular genius - first by incorporating a hood scoop to lower the surrounding sheet metal, and then by incorporating sharply creased fender lines out over the wheels to draw the eye's attention away from the unusually tall peak in the hood. A few design changes were requested by SH Arnolt.