BMW says today that it'll offer a diesel-power version of the flagship 7-series sedan in the U.S. this spring. The 2014 BMW 740Ld xDrive sedan will have a starting price of $83,425, including $925 shipping. BMW says it'll make its U.S. auto show debut at the Chicago Auto Show in February. The German automaker says it will accelerate from standstill to 60 mph in 6.1 seconds. The U.S.