I have rented an SUV for May 13 to 20th (midsize SUV-Equinox). I read somewhere that online check in was not allowed when renting a midsize SUV. Now checking Alamo website I see nothing in the rules about renting a specific car. It just says do online checkin and bypass the line in the airport. Go directly to parking garage and get your vehicle and proceed to the check out booth. Has anyone recently done this? I would love to be able to bypass that long airport line!! 
