Production chronology1914–1922
Sourced production or model lifecycle range used by the main catalog timeline.
Wikipedia infobox ↗9 years
← Alfa Romeo
Alfa Romeo / Model record
Alfa Romeo20/30 HP
Production1914–1922
Recorded originItaly
Classpassenger car
Background
ALFA or later Alfa Romeo has made three cars named as 20/30 HP, first one 1910 4-cylinder 4-6-seater tourer, improved version 20/30 HP E in 1914 and 1921 the 20/30 HP ES Sport, a 4-seater sportscar.
Text adapted from “ALFA 20/30 HP” on Wikipedia ↗ · CC BY-SA 4.0 ↗ · retrieved 2026-07
Chronology ledger
Dates with their meaning intact
Netherlands RDW first-admission observations1914
First-admission years observed in Dutch vehicle registrations; this is market evidence, not a worldwide production range.
Netherlands RDW ↗1 year