- Manufacturer: Finley-Robertson-Porter Company, Port Jefferson, New York 1914-1918
- Model: 45
- Coachbuilder: Holbrook
- Cost new: $6800. Number produced: 9
- Engine: Single overhead camshaft inline four cylinder water-cooled
- Horsepower: 100 horsepower
- Transmission: Four-speed selective sliding
- Suspension: Semi-elliptic leaf springs
- Brakes: Mechanical on rear wheels
- Special features: #5 of only nine built and the only one known to survive
Advertised as “America's Foremost Pleasure Car,” the F.R.P. was also one of America’s most expensive and most limited edition cars. With a top-speed of 80-plus M.P.H., this very rare car was designed by Finley R. Porter, creator of the T-head Mercer Raceabout.