To Be OFFERED AT AUCTION at RM Sothebys' The Hershey Auction event, 7 - 8 October 2026.
$100,000 - $140,000 USD
- Among the most magnificent, technically advanced cars of the Classic Era
- Offered from nearly four decades of ownership
- Powered by a 341-cid V-8 rated at 95 hp and paired with the revolutionary “clash-less” synchromesh transmission
- Elegant two-tone cream-over-black presentation, complemented by chrome wire wheels, dual side-mounted spares with mirrors, wind wings, herald mascot, and folding trunk rack
- A CCCA Full Classic
By the close of the 1920s, Cadillac had earned an enviable reputation as America’s foremost technical innovator, producing automobiles whose engineering sophistication rivaled the finest marques in the world. Its achievements were extraordinary, encompassing the electric starter, safety glass, electric lighting, all-steel roof construction, synchromesh transmission, the dual-plane-crankshaft V-8, and, most spectacularly, the V-16 engine.
Yet Cadillac’s evolution was no longer confined to engineering. In 1927, General Motors recruited Harley J. Earl to create LaSalle, Cadillac’s companion marque, and his revolutionary approach transformed automotive styling. Earl elevated automotive design into an essential part of a manufacturer’s identity, setting the course for the dramatic styling advances that would define the coming decade.
For 1929, subtle changes to the front-end styling reflected Earl’s growing influence, with chrome replacing earlier bright-metal finishes and signal lamps relocated to the fenders. Beneath the elegant coachwork, Cadillac introduced an innovation of even greater consequence: its “clash-less” synchromesh transmission. Paired with the 341-cubic-inch, 95-horsepower V-8, this advanced transmission eliminated the need for double-clutching, bringing a remarkable degree of smoothness and ease to the driving experience.
This 1929 Cadillac 341-B Roadster is a particularly appealing example, having been carefully and thoughtfully maintained throughout nearly four decades under its present ownership. Believed to retain its factory chassis, coachwork, and V-8 engine, the Cadillac is said to have received a comprehensive restoration in 2007 by respected restorer Brian Joseph and subsequently shown on the concours circuit, including at the 2009 Meadow Brook Concours d’Elegance.
Presented in an elegant cream-over-black color scheme, the Roadster retains an exceptional selection of desirable features, including its louvered carburetor cover, Bakelite shift knob, herald mascot, wind wings, dual side-mounted spares with mirrors, chrome wire wheels, golf-bag door, rumble seat, and folding trunk rack.
A commanding expression of Cadillac’s engineering prowess and emerging design sophistication, this Classic Car Club of America Full Classic combines grandeur, performance, and open-air touring appeal. Equally at home on the concours field or the open road, it stands as a superb example of the era in which Cadillac established its reputation as the “Standard of the World.”
To view this car and others currently consigned to this auction, please visit the RM website at
rmsothebys.com/auctions/hf26/.