With Ride Along, drivers will see their rates and estimated savings before switching SAN FRANCISCO--(BUSINESS WIRE)--#AI--Metromile, the leading pay-per-mile car insurance company in the U.S., today announced the launch of Ride Along, a free new way for drivers to understand if their driving can result in a lower car insurance rate before they sign up. More than 124 million Americans could be overpaying for car insurance, missing out on as much as $947 a year in savings because they do not pay per…