1914 Cartercar Model 7T Touring Project Heads to Auction With Rare Friction-Drive System

A 1914 Cartercar Model 7T Touring is being offered as a project vehicle on Bring a Trailer, presenting collectors with an early example of experimental drivetrain engineering from the brass-era automobile period. The car is not roadworthy and is being sold with a bill of sale in Washington after being purchased by the selling dealer in 2025.

Finished in maroon with black accents and white striping, the touring car features a black convertible top secured at the front with leather straps, a horizontal split windshield, and exterior details that include cowl lights, running boards, a battery box, and a single taillight. A fuel tank is mounted between the rear leaf springs, while the center-hinged hood and side mirror reflect early 20th-century touring design.

The Model 7T rides on white-painted wood-spoke wheels fitted with demountable metal rims and 33×4-inch Gehrig Tire Co. tires. A spare rim and tire are mounted on the right side. Suspension consists of live axles supported by semi-elliptical leaf springs at the front and three-quarter-elliptical leaf springs at the rear. Stopping power is aided by contracting band brakes on the rear hubs in addition to resistance provided by the friction transmission.

Inside, the right-hand-drive cabin offers seating for up to seven passengers across front and rear bench seats trimmed in button-tufted black upholstery. The front floor is covered by a rubber mat, while the rear section is carpeted. Storage pockets are integrated into all three doors, and the transmission control lever is positioned on the floor to the driver’s right. The wood firewall houses a Stewart Magnetic Type speedometer, ammeter, map light, and switchgear, while the odometer shows 2,000 miles, with true mileage unknown.

Power comes from a 3,150cc Northway flathead inline-four rated at 31 horsepower. The engine features both electric and hand-crank starting and uses a Schebler updraft carburetor. A defining characteristic of the Cartercar is its gearless friction-drive transmission, which operates by moving a friction wheel across an engine-driven disc to vary torque and speed. Reverse is achieved by engaging the opposite side of the disc, and an enclosed chain delivers power to the rear axle.

See it here.

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