A member qualified for Executive Selection is also welcome to take a car from the Emerald Aisle.
When I want an upgrade I expect to pay for it. Desirability of 4x4 in inclement weather runs high. $25 is a premium I have been quoted when big snow was forecasted to fall.
Exec Select is a promise of full size cars. That doesn't imply 4x4s when it's snowing, a Cadillac CTS, or a minivan when you need space for seven.