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.
Arnolt created a racing team for the Sebring 12-hour race, and in 1955, at their first attempt, the special lightweight cars finished first, second and fourth in the Sports 2000 class. The following year they took second and third in class. In 1957 the team withdrew after Bob Goldich's fatal accident on the first lap of his first stint in the car co-driven by Wacky Arnolt, while a privately entered Arnolt Bristol finished fifth in class. 1960 brought a final class win, the team placing 14th, 22d and 39th overall.
The cars were available in four body styles: competition—a stripped road racer; bolide—a slightly better-appointed road racer; deluxe—a better-appointed version of the bolide (side windows and convertible top, instruments mounted in a housing in front of the driver, glove box set in the dash); and coupé, with pop-up headlights. At least one open car was subsequently fitted with a removable hardtop by S.H. Arnolt. Prices as per a 1956 factory letter were $3995 for the competition model, $4245 for the bolide, $4995 for the deluxe and $5995 for the coupe.
Factory options for the Arnolt Bristols included a front sway bar, remote shifter, 11-inch Alfin drum brakes, convertible top, bumpers, Borrani KO steel wheels (nine sets were sold, and one car was sold with Borrani wire wheels) and several different rear end gear ratios. A special racing fuel tank was installed in some of the race cars but was never offered for sale to the public. Late in 1959 and 60, the 12-inch bell-shaped Bristol drum setup was offered, and in 1961 Bristol front disc brakes were offered to retro fit to the Arnolt Bristol. The majority of the cars had steel bodies, with aluminum trunk and hood.
The cars came with an owner's manual, spares manual and shop workbook, as well as a spare wheel and tire and complete tool kit. Additional items such as Arnolt key fobs, neck ties, ice buckets and Arnolt logo head scarves were available from the company. A wide variety of promotional literature, including brochures and postcards, was also produced.
All of the cars were originally sold with Bristol BS1 MkII six-cylinder engines; some have subsequently been fitted with other engines. Approximately 85 of the cars are still known to be extant, in conditions that vary from needing complete restoration to concourse quality. Despite the racing successes, the cars did not sell well.
Some of the cars did not sell until after 1960, and the last car to be sold, fitted with four headlights, remained unsold until 1968.
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