The phrase "ample legroom" means that there is enough space for you to stretch and move your legs comfortably, usually used to describe seating arrangements in vehicles like airplanes or cars. Full definition
They're easily adjustable for drivers of varying heights with ample legroom for the six - foot crowd. (bestride.com)
The long wheelbase provides ample legroom for all passengers. (allpar.com)
And inside, the sporty interior features modern upgrades, like available combination leather and cloth seat trim, while offering ample legroom, shoulder room, and cargo volume. (southsidekiajax.com)