7. Subaru Rex
The Subaru Rex was designed to thrive within Japan’s stringent kei car regulations, boasting a tiny engine and ultra-compact footprint. While mainly sold in Japan, a handful of Rex models made their way overseas, offering an economical solution for urban mobility. Its nimble size and efficiency made it a favorite among city dwellers, rivaling other kei cars like the Honda Today. The Rex exemplified Subaru’s knack for creating practical, space-efficient vehicles tailored to specific market needs. [Source]