According to Cars.com, BMW will introduce a diesel option into the 5 Series sometime in the second half of 2013. A numeric name has yet to be announced for the 5 Series diesel, so exactly what will be powering it is still unknown.
The new 328d (pictured above) uses a turbo four cylinder diesel engine that makes 180 horsepower and 280 lb-ft of torque, while in Europe, the 525d is powered by a twin-turbo four cylinder that puts out 218 hp and 332 lb-ft of torque. Either engine could be used here in the States for the 5 Series diesel.
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