GM sues San Francisco, seeking $121 million in back taxes, penalties

General Motors has sued the city of San Francisco, seeking to recover more than $100 million, alleging that it was charged a higher tax bill than warranted because its Cruise self-driving car unit was improperly used to make the calculations.In the case filed in California Superior Court in San Francisco, GM is seeking $108 million in back taxes over the course of seven years, as well as $13 million in penalties and interest, according to the complaint. The Detroit automaker said San Francisco-based Cruise ...