Vent windows once gave drivers and passengers in some air on hot days. Cars generally don't have vent windows anymore now that almost all vehicles have AC. With summer approaching, it's time to have your AC checked. You just don’t see many vent windows in the vehicles around McHenry anymore. That’s because air conditioning is standard equipment in virtually every vehicle sold today. Vent windows were made to scoop some air into the vehicle while you drive. Think about a driver pulling out on the road on a really hot day in McHenry 60 years ago. Their car doesn’t have air conditioning. No doubt, they’ll roll the windows down. But as their vehicle slips through the air, only so much air will come into the car. This is where vent windows came in. Vent windows were mounted at the front of windows for the driver and passenger in the front seat. They had a manual lock that pivoted down to hold them in place. Flipping the lock up, the vent windows then tipped out so they caught the ai...