The runabout was catalogued at $3,500, the tourers at $3,750, and the limousine and landaulet at $5,000 The Model S, built from 1915 until 1916, was the last of the big four-cylinder Cunninghams.

Technically, these cars were quite similar to the model R. Body styles and prices remained unchanged.

A side-valve design with a displacement of 442 c.i., it was rated at 45 hp by the National Automobile Chamber of Commerce (NACC).

For example, the series V's clutch and transmission came from Brown-Lipe-Chapin, axles and rear-wheel brakes from Timken-Detroit, pistons from Lynite, and an electrical system from Westinghouse.

Roads were bad and Cunninghams were equipped with an air pump for easier repair of punctured tires.

As there was no service network for the company, and owners did not wish to let local mechanics repair their expensive cars, Cunningham sent its own experts to their customers.

Open types—five- and seven-passenger touring cars, a new two-passenger roadster, a three-passenger runabout and a four-passenger toy tonneau—were priced at $3,750.

At $5,000 each, the four more formal styles (five-passenger touring sedan, six-passenger town car, and a limousine and a berline that both seated eight passengers) were the most expensive.

Cunningham invited its customers to commission their own bodywork, and assisted with design and execution.

A special roadster became available to commemorate race car driver Ralph DePalma’s record-breaking run at Sheepshead Bay that year.

There were 3 main bearings on each cylinder bench, and the counterweighted aluminium crankcase was cast in two parts.

Now, there were a touring car and three formal styles (one of them a Cabriolet convertible sedan) on the smaller chassis, with prices starting at $6,000.

The cars now offered a four-speed manual transmission and coincidentally were called the series V-4.

The Volney-Lacey designed 442 cu in (7.2 L) continued, with 45 hp according to the outdated NACC measuring method—for 1923, the rating was 90 bhp.

[2] On November 17, 1919, Ralph DePalma drove a stripped but otherwise stock series V-3 Cunningham special roadster at 98 mph in a six-mile trial at the Sheepshead Bay Race Track.