Ford sold 29,000 cars in the US in 2013 through its mobile site

"Forty percent of Ford’s Web traffic comes from mobile. Mr. Farley said that much of it comes from prospective buyers walking car lots after hours. Further, he said that
29,000 cars were sold last year through the mobile Web site.
Mr. Farley said that the big opportunity resides in our ability to “talk to each customer.” But he warned the audience members that with that comes “a higher burden and standard of excellence for marketers.”"

Source:  Mobile Marketer, 3rd October 2014