The Honda S600 was in production from 1964 until 1966. The popular car saw about 13,000 units produced in this time, and though it was availed in both roadster and coupe variants, Honda built around ten times more roadsters than coupes.
The S600 replaced the S500 and was powered by an overhead cam 606 cc straight four engine with four carburetors, mated to a 4-speed manual transmission. Producing around 57 horsepower from 8,500 rpm, the Honda S600 could achieve a maximum speed of around 90 mph. The S600 was meant to serve as a much cheaper alternative to many of the similar European compact roadsters of the day. The model did well for Honda before production dropped off in 1966.
Though 57 horsepower seems like a rather minuscule amount, consider that the car weighed less than 1,600 pounds. However, the owner of the S600 pictured above decided to give the car a power upgrade. He replaced the 606 cc stock engine with a much newer 1,000 cc 007 Honda CBR 1000RR motorcycle engine that can rev to as high as 12,000 rpm and produce more power. The engine is coupled to a motorcycle gearbox and a BMW two-piece drive-shaft. Owner Matt Brown also upgraded to larger tires and wheels and customized the suspension to include many motorcycle components.
Jay Leno decided to give the car a drive after all of the aforementioned modifications were made. Though the car has ostensibly seen better days, its beat up character and rugged look give it a sense of identity and style all its own.