That’s … less than stunning. It shows big changes in business-traveler behavior (and by extension in consumer behavior in general). But rental-car companies appear to still account for a 70 percent share of ground-transportation spending by Certify users, more than twice that of Uber and Lyft combined. Which makes sense: If you’re traveling to anywhere but a city center or other densely packed neighborhood in the U.S., renting a car for a few days is still usually more convenient than trying to get by on ride hailing, transit, walking or, well, scootering.