Rolls-Royce 20 hp

Among the 63 Rolls-Royce entries in the MotorJury library, the Rolls-Royce 20 hp holds its own page in a catalogue built to record every car ever made, from series production to one-off concepts. The record places its introduction in 1905. The photography on this page is hotlinked from Wikimedia Commons under an open licence, with the photographer credited on every frame.

The era it was born into

To read the Rolls-Royce 20 hp properly it helps to place it in its decade. The 1900s were the pioneering years, when motoring was still an adventure for the wealthy, roads were unpaved, and every manufacturer was effectively an experimental workshop. Any car launched into that world was shaped by it — by what materials, engineering and regulation allowed, and by what buyers of the day demanded. Its direct contemporaries in this catalogue, introduced within three years of it, include the Ford Ford Model T, the Nesselsdorfer Wagenbau-Fabriks-Gesellschaft NW F, the Rover Rover 6 — the cars a buyer of the period would actually have cross-shopped.

The numbers, read closely

On paper, the Rolls-Royce 20 hp reads like this: the record lists its engine as 4118cc 4-cylinder.; kerb weight is recorded at wheelbase = 106 in or 114 in; drive goes through three- or four-speed. Every figure above is a manufacturer specification carried by the Wikipedia infobox or the open Wikidata record for this model — nothing on this page is estimated, and where a source is silent the row simply does not appear.

Its place in the Rolls-Royce story

Within Rolls-Royce's own catalogue the Rolls-Royce 20 hp sits alongside the Rolls-Royce 100EX (2005), the Rolls-Royce 102EX, the Rolls-Royce Phantom Coupé, the Rolls-Royce Phantom Drophead Coupé. It was succeeded by the designer = Henry Royce. Design is credited to Henry Royce.

How this catalogue works

This library is generated, verified and rebuilt from the open record on every deploy. The catalogue skeleton comes from Wikidata, specifications from Wikipedia's infoboxes under CC BY-SA, photography from Wikimedia Commons under each file's own licence, and the ownership data from United States federal safety records. Nothing is written by hand and nothing is invented: every fact on this page traces to a public source, and every page is rebuilt nightly as those sources improve. Errors in the source record will appear here too — and disappear the night the source is corrected.

Why concepts and prototypes are in the library

Most car databases stop at series production. This one deliberately does not, because concept cars, racing specials and cancelled prototypes are where the industry thinks out loud — the ideas tested in public years before they reach a showroom. Holding them beside the production cars they inspired makes the lineage legible: nearly every landmark road car in this library has a concept ancestor somewhere in the catalogue, and the connections run through the era links on every page.

Reading a sparse record honestly

Some pages in this library brim with specifications; others, like corners of every archive, are thin. The honest response to a thin record is to say so, not to pad it. What is shown here is exactly what the public record supports today — and because the harvest re-runs nightly, the page you are reading is the fullest version of this car's open record that existed the last time the site was built.

From catalogue to ownership

A specification sheet is only half a car's story. The other half — what breaks, what it costs to keep, which years to avoid — lives in MotorJury's ownership database, computed nightly from federal complaint and recall records and EPA economy data. Where the Rolls-Royce 20 hp was sold in the United States, its model years carry full ownership verdicts there.