In late 2017, the co-founder of General Motors Co.’s self-driving unit told investors the company was on the verge of putting 1 million miles on its autonomous test cars a month.
That projection proved to be quite a stretch. GM Cruise logged less than 450,000 miles all of last year in California, according to a report released Wednesday. While Cruise has self-driving Chevrolet Bolts on the road in other states, the bulk of its testing is done in California.
