Phoenix-based online used car retailer Carvana is opening its fourth car vending machine today in San Antonio, Texas.

This is the third fully-automated, coin-operated car vending machine Carvana has opened in the past four months, following rollouts in Houston and Austin.

The San Antonio car vending machine is eight stories tall, has four delivery bays and stores up to 30 cars in the glass structure.

“We’ve been offering our free delivery services in the San Antonio market for almost a year…