The Datsun 510 released to the U.S. market had a Hitachi downdraft-carbureted 1.6L L-series I4 engine, with an advertised gross power of 96 hp (72 kW), a claimed top speed of 100 mph, front disc brakes, four-wheel independent suspension (MacPherson struts front and semi trailing arm rear- wagons had a solid rear live axle and leaf springs in back), rear-wheel drive, and either a four-speed manual or a three-speed automatic transmission. Two-door sedan, four-door sedan, and four-door station wagon variants were available. It achieved 20 to 30 mpg in factory trim (U.S.). Japanese-domestic-market (JDM) models were also available in a two-door coupe body style with either a 1.6L or a 1.8L (1973) L-Series engine. 510s, in some markets, offered twin Hitachi side-draft carburetors, which were a smaller version of the British SU (Skinner's Union) design used on Jaguars and MGs. These engines also used enhanced compression and camshaft profiles to produce more power. SSS models (not available for the U.S. 510) offered upgraded instrumentation and interior trim, as well as appropriate exterior badges. All U.S. model 510s received anti-sun glass from 1970 on.