The Renault KZ is a 4-door Torpedo, 4-door Sedan, 2-door Truck from Renault, built from 1923 to 1931, the vintage years, when coachbuilders still shaped most of what was sold. Under the bonnet: 2120 cc I4, 35 hp. Louis Renault drew it.
Under the skin
Power comes from 2120 cc I4, 35 hp. It weighs 1320 kg. It shifts through a 3-speed manual. The layout matters: a front engine drives the rear wheels, the classic proportion — long bonnet, cabin set back — that most people picture when they picture a sports saloon or a grand tourer. The wheelbase is 2800 mm. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
In context
Its family tree is legible: it took over from the Renault GS / Renault IG; its successor was the Renault Primaquatre / Renault Vivaquatre; assembly was at : Île Seguin, Boulogne-Billancourt, Paris. Its contemporaries in the catalogue — the Fiat 502, the Bugatti Type 32, the Tatra 11 — show what else the money bought that year. Nearby in the Renault catalogue sit the Renault 10 and the Renault 10CV.
What it costs now
MotorJury scores cars on the United States complaint and recall record, and the Renault KZ has none: too old, too rare, or never sold there. Its value today is a collector's question, decided by provenance and condition rather than by a class average.