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Nuh uh, the Honda Z600 isn't a motorcycle, though it was definitely powered like one. Among the first cars Honda ever imported to the states, the Z600 was a 1,300-lb microcar with an air-cooled, overhead-cam, two cylinder 598cc engine that cranked out as much horsepower as an industrial baking mixer. (And it could nearly fit in the bed of a 2005 Honda Ridgeline). A 1972 model is for sale. We say pick it up. Literally. Check out Urban Racer's take on the old-school, pre-VTEC Honda. [Thanks to Mike for the tip.]

1972 Honda Z600 AZ600 coupe *Rare vintage microcar* [eBay]

Honda Civic SI Concept [internal]