Honda S800 is correct. This is a 1967 model photographed in Europe.
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The S800 was introduced to the world at the 1965 Tokyo Motor Show, and offered for sale in 1966. For this displacement increase, there would be some significant styling changes to both the front and rear of the car, while again being available in either roadster or coupe form. The early S800 would also be sold in standard and "SM" trim levels.
The displacement was increased to 791cc which resulted in 70 hp at 8000 rpm. The S800 reached 100 mph and still boasted 35 mpg. The first 752 convertibles and 242 coupes continued the chain rear drive and independent rear suspension of its predecessors. For the next 604 roadsters and 69 coupes, Honda replaced the rear chain / suspension configuration with a more conventional live rear axle located by four radius rods and a panhard rod, while retaining four wheel drum brakes. Thereafter, front disk brakes replaced the four-wheel drum setup, while continuing the live rear axle for the remainder of the production run.
The next significant change came in 1968 with the introduction of the S800M version. Aimed at the American market, Honda made changes to include flush door handles, side marker lights, dual circuit brakes, varied taillight configurations to suit different markets, safety glass, leaner carburetion, and more. (They went so far as to show a "USA Model" in the parts catalogs and owner's manuals, but no S800s, or for that matter any S series cars, were ever officially imported into the US for retail distribution.)
All the changes were in vain, however, as the high revving engine produced too many hydrocarbons. New safety and emissions regulations were being introduced and the S800 did not measure up. Without the support of the American market, Honda ceased production of the S800 in May 1970.