The Mazda R100 used the chassis from the Familia and the rotary 0820 engine similar to the one used in the Cosmo Sport Series II. It was a 2 door 2+2 coupé and was produced from 1968 to 1973. It was also known as the Familia Presto Rotary and was quite ordinary except for its powerplant. Power was rated at just 100 hp (70 kW) due to a small carburetor (thus the "R100" name).
The R100 was one of the first cars imported into the United States for the new Mazda Motors of America, sold in model years 1971 and 1972. It was a surprising hit with the American public, though sales were limited to some Northwestern states initially[1].
Mazda R100 Coupé
Produced: 1968 - 1973
Engine: Two-rotor rotary engine (Wankel-licensed), aluminium rotor chambers, cast iron center and end plates
Bore x Stroke: Does not apply
Displacement: 984 cc
Max. Power @ rpm: 100 hp (75 kW) @ 7000 (SAE gross)
Max. Torque @ rpm: 125 N·m (92 lb·ft) @ 4000 (SAE gross)
Compression Ratio: 9.4: 1
Fuel feed: single Hitachi 4bbl-carburetor
Fuel tank capacity: 50 L (13.2 US gal; 11.0 imp gal)
Valvetrain: Does not apply
Cooling: Water
Gearbox: Fully synchronized 4-speed-manual with floor mounted lever control & rear wheel drive
Electrical system: 12 volt
Front suspension: MacPherson struts, coil springs, anti-roll bar
Rear suspension:: Solid axle, semi-elliptical leaf springs
Brakes: Front discs (9.6 in), rear drums (7.9 x 13 in)
Steering: Recirculating ball steering
Body structure: Sheet steel, monocoque (unibody) construction
Dry weight: 913 kg (2,010 lb)
Track front/
rear: 1,200 mm (47 in) 1,190 mm (47 in)
Wheelbase: 2,260 mm (89 in)
Length: 3,830 mm (151 in)
Width: 1,480 mm (58 in)
Height: 1,345 mm (53.0 in)
Tyre/Tire sizes: 14 x 4.0“
Top speed (estimate): 177 km/h (110 mph)
0-60 mph (measured): 10.8 sec
Fuel Consumption (measured): 9.8 litres per 100 kilometres (29 mpg-imp; 24 mpg-US) − 14.7 litres per 100 kilometres (19.2 mpg-imp; 16.0 mpg-US)
Price (USA, MY 1971): $ 2.495
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