The Crane-Simplex Model 5 stands as one of the most exclusive luxury vehicles produced during the Brass Era. Manufactured between 1915 and 1918, it was a limited-production automobile sold as a high-performance chassis, catering to America’s wealthiest individuals.
With only 121 units built, the Model 5 combined elite engineering with bespoke craftsmanship, making it a coveted collector’s piece and a milestone in early luxury car development.
Key Takeaways
- Sold as chassis only, with custom bodies by top coachbuilders.
- 110 hp six-cylinder engine offered exceptional power.
- Owned by elites like Rockefeller and Vanderbilt.
- Only 121 units made between 1915 and 1918.
- Designed by engineer Henry M. Crane.
Historical Background of Crane-Simplex
The Crane-Simplex Model 5 originated from a merger between the Crane Motor Company and the Simplex Automobile Company in 1915.
Prior to this, Crane was known for engineering innovations, while Simplex had a reputation for building high-end performance cars. The merger aimed to create an ultra-luxury vehicle that would rival the world’s finest, offering a technically advanced chassis that wealthy clients could pair with bodies by top-tier coachbuilders.
Key People
- Henry M. Crane: Chief Engineer and visionary behind the Model 5. He previously developed the Crane Model 4 and brought sophisticated suspension, braking, and engine innovations to the Simplex line.
- William L. Hendee: Owner of Simplex who facilitated the merger with Crane, giving Crane control of engineering and design.
- Coachbuilders: Prestigious firms such as Brewster & Co. and Holbrook crafted the custom bodies for Model 5 chassis buyers.
Henry M. Crane, the chief engineer behind the Model 5, emphasized mechanical reliability and ride quality. His rigorous testing protocols and innovative designs set new standards in the automotive industry.
After the decline of Simplex, Crane continued to influence engineering, contributing to the development of Dixie speedboat engines, showcasing his versatile brilliance.
Models Released and Key Features
Only one primary version—the Model 5 chassis—was offered, intended for custom coachwork. Despite this, its features were highly advanced for its time:
- Engine: 563.8 cubic inch inline six-cylinder engine, producing 110 horsepower.
- Chassis: Sturdy yet refined, designed to accept a wide range of luxurious custom bodies.
- Brakes: Four-wheel mechanical braking system, rare for the time.
- Spring Suspension: Specialized rear suspension to reduce road shock.
- Craftsmanship: Each chassis hand-built, priced at $5,000 in 1915—equivalent to over $140,000 today.
Engineering Excellence and Specifications
The Crane-Simplex Model 5 was a pinnacle of early 20th-century automotive engineering. Designed by Henry M. Crane, it featured a 9.2-liter inline six-cylinder L-head engine producing 110 horsepower, allowing the vehicle to reach speeds up to 65–68 mph.
The engine’s cylinders were cast in blocks of three, with fully enclosed valve springs, enhancing durability and performance. Innovative suspension design minimized lateral shock, providing a smoother ride.
Each chassis underwent rigorous testing, including 36-hour belt tests and 48-hour block tests, simulating 5,000 miles of road travel before delivery .
Production History and Limited Output
Production of the Model 5 began in 1915 at the Simplex factory in New Brunswick, New Jersey. Despite plans for annual production of 100 units, only 467 units were built between 1915 and 1918 .
In 1916, the Wright-Martin Aircraft Corporation acquired Simplex, shifting the factory’s focus to aircraft engine production during World War I. Automobile production was suspended and never resumed, although a few cars were constructed from existing parts
Customization and Luxury Features
The Model 5 was sold as a luxury chassis, allowing customers to commission bespoke bodies from esteemed coachbuilders like Brewster & Co., Healey & Co., and Holbrook Co.
Body styles included touring cars, limousines, and phaetons, tailored to the owner’s preferences. The base chassis price ranged from $5,000 in 1915 to $7,000 in 1918, with custom coachwork adding significantly to the cost .
The vehicles featured high-quality materials, including diamond-tufted upholstery and polished German silver radiator shells, exemplifying opulence and craftsmanship
Notable Owners and Market Position
The exclusivity and luxury of the Model 5 attracted affluent clientele, including John D. Rockefeller, Frederick W. Vanderbilt, and Alfred Atmore Pope . These individuals valued the vehicle’s engineering excellence and bespoke design.
The Model 5’s high price and limited production positioned it as one of the most prestigious automobiles of its time, comparable to contemporaries like Rolls-Royce.
Restoration and Preservation Efforts

Surviving Model 5s are rare and highly valued by collectors and museums. Restoration efforts focus on maintaining authenticity, utilizing original parts such as the Newcombe carburetor and Kellogg air compressor.
Restored vehicles showcase period craftsmanship, including diamond-tufted upholstery and polished German silver radiator shells. These efforts ensure the preservation of the Model 5’s legacy as a symbol of early American luxury automotive design.
Legacy and Historical Significance
| Year | Event |
|---|---|
| 1915 | Introduction of the Crane-Simplex Model 5 |
| 1916 | Acquisition of Simplex by Wright-Martin Aircraft Corporation |
| 1917 | Suspension of automobile production due to World War I |
| 1918 | Final units constructed from existing parts |
| 1920 | Rights to the Simplex name acquired by Emlen S. Hare |
| 1922 | Henry M. Crane establishes Crane-Simplex Company; no further cars produced |
The Crane-Simplex Model 5 remains a testament to early 20th-century luxury and engineering prowess. Its limited production, bespoke design, and association with prominent figures contribute to its status as a collector’s gem.
The Model 5 symbolizes a transformative era in automotive history, bridging the gap between horse-drawn carriages and modern motor vehicles.