In the last two months, I rented three times in HSV. They have around 15 spots for EA and 2 spots for ES and VIP. But the cars in the ES and VIP spots are never available for Executive member unless you would like to pay 50/day extra. From what I can recall,

First time (early May):
EA:
Dodge Ram 1500 * 2
Dodge Charger
Chrysler 200
Toyota RAV4 (I took this)
Toyota Camry * 2
Chevy Impala
Chevy Malibu
Hyundai Sedan * 2

ES:
Chrysler 300
Hyundai or Kia sedan

Second time (late May)
EA:
Chevy Camero 1LT * 3 (I took this)
Chevy Impala
Chevy Malibu
Dodge Ram 1500
Dodge Journey
Toyota Camry

ES:
Chevy Camero 1SS (I tried to get this but failed)
Chevy Impala (high trim)

Third time (yesterday)
EA:
Dodge Charger * 2 ( I took this)
Dodge Ram 1500 (the salesman tried to give it to me at first without letting me know the choices I have)
Chevy Malibu
Chrysler 200

ES:
Lincoln MKZ
Hyundai