Kei Jidosha: How Tiny Japanese Cars Changed the Road – History, Design, and Impact

Bottom Line Up Front

Japan’s kei jidosha – tiny, low‑cost cars – started in the early 1950s and quickly reshaped the nation’s streets, industry, and everyday life.

Design & Looks

Early kei cars were simple two‑seaters like the 1952 Auto Sandal and the 1954 Flying Feather. They fit within strict size limits – 3 m long, 1.3 m wide and 2 m high – which forced clever packaging. Over time, models grew a bit more personality: rounded edges, bright colors, and clever storage solutions that made city parking a breeze.

Performance & Mileage

Kei regulations capped engine size at 360 cc in the early years (now 660 cc). Despite the tiny powerplants, manufacturers tuned them for fuel‑efficiency – often over 70 mpg (≈30 km/l). The Subaru 360, launched in 1958, was praised for its smooth engine and supple suspension, proving a small car could still feel lively on winding roads.

Price & Rivals

The government’s 1955 “People’s Car” plan demanded a price below ¥150,000 (about £4,800 today). Subaru, Suzuki, Mazda, Datsun and Mitsubishi all answered the call, turning kei cars into an affordable alternative to larger Japanese models. By 1960, annual sales jumped from a few dozen to over 77,000 units.

Quick Specs at a Glance

FAQ

What was the original engine size limit for kei cars?

The first limit was 360 cc in 1951, later raised to 660 cc.

How many miles could a classic kei car get per gallon?

Typical fuel economy was over 70 mpg (about 30 km per litre).

Are kei cars still popular in Japan today?

Yes, they remain a beloved segment for city dwellers, offering cheap ownership and easy parking.

Join the Conversation

What do you think about the tiny yet mighty kei jidosha? Share your thoughts in the comments below.

Source: Read Official News