June 18, 2026

The 1950 Triumph TRX - famously known as the “Silver Bullet” roadster - was a radical, highly advanced experimental concept car built by the Standard Motor Company. Designed by Triumph’s chief stylist Walter Belgrove, the TRX departed from the company’s traditional, upright styling in favor of an aerodynamic, full-envelope aluminum body. Heavily influenced by American post-war "streamline" design trends, the roadster was given its "Silver Bullet" moniker due to its sleek profile, rear wheel spats, and metallic finish. It was also notable for being one of the very first European vehicles to feature electrically operated concealed headlights. The Silver Bullet was envisioned as a top-tier personal luxury car. It was packed with futuristic, highly complex electro-hydraulic systems - the soft-top convertible roof, windows, and front seats were all fully automated. Hydraulic jacks were built into the vehicle too assist with flat tires. Even the hood (bonnet) opened via an electric hydraulic ram. During its high-profile public debut at the 1950 London Motor Show, the prototype's complex wiring short-circuited and caught fire right in front of Princess Margaret, locking the automated hood shut and sealing the car's reputation as unreliable. Only three prototype models were made before the project was abandoned.
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