The original rear-engined Fiat and the brand’s first unibody car, spawning versions at SEAT and Zastava, a hot Abarth version, not to mention the larger 850. The Multipla MPV was based off the 600, as was a pretty Vignale coupé. The name was revived in the 1990s, but spelled out in Italian, and again in the 2020s as a B-segment crossover.

• Fiat 600 (1955–82)
• Fiat 600 Multipla
• Fiat 600 Vignalina
• Fiat Seicento
• Fiat 600e

Marque: Fiat | Predecessor: Fiat 500 | Successors: SEAT 133, Fiat 147, Fiat 500