Middle Tennessee residents may have noticed a unique new structure while commuting on Interstate 65: a five-story glass tower filled with used cars. The building, a fully-automated vending machine for cars, is owned by online auto retailer Carvana and is the first of its kind in the country, although the fast-growing Arizona-based company expects to bring the concept to many more markets.

Tennessean photojournalist Shelley Mays and I experienced the vending machine firsthand Wednesday during a tour of the facility with Carvana’s co-founders, Ernie Garcia and Ryan Keeton.

What I learned: Carvana is working hard and fast to disrupt the used car industry.

From its user-friendly website that allows customers to buy a used car online in less than 20 minutes, to encouraging customers to share their experience in social media in order to slash marketing costs, Carvana wants the car-buying process to be fun, easy, less costly and transparent.

Link to Car Vending Machine Video: http://www.carvana.com/vendingmachine