SCOTTSDALE, AZ – BMW AG uses its fourth-generation 3-Series retractable hardtop to debut its 170-hp, 2.0L I-4 engine with direct-injection gasoline (DIG) and fuel-saving start/stop functionality. The 320i’s new mill, with its peak torque rating of 155 lb.-ft (210 Nm), promises a 0-60 mph (97 km/h) time of 9.1 seconds, top speed of 141 mph (228 km/h) and a 20% improvement in fuel consumption to 36 mpg (6.6 L/100 km) based on the European test cycle. BMW uses the European Union standard ...

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