Product and service ratings for car rental and mobility companies were on the rise in Business Travel News' annual Car Rental and Ground Transportation Survey. This year, National Car Rental retained its place as the top-rated supplier for an 11th year in a row, while its related brand Enterprise Rent-A-Car cruised into second for the fifth year in a row. Hertz was the biggest mover in 2026 survey, vaulting into third place after a fifth-place finish last year. BTN editors cover car rental market dynamics in the following stories, plus chauffeured, ride-hail and—new this year—how autonomous vehicles are entering the corporate travel market.