It's a genuine drive-in, with four rows where you pull your car into angled slots, press the button and yell into the speaker when you're ready to place your order. They've also got a patio area in case you want to get out of your car and sit at a table under an umbrella. They've got call-in boards at those tables, too.
The carhops zip around on roller skates, although ours looked like she was having a little bit of trouble getting used to hers. The food was pretty good, if not great. They didn't have Ken's green-chile cheeseburger but did have a jalapeño cheeseburger ($2.99), which was pretty good. My wife said her No. 1 cheeseburger (with mustard) had a little too much mustard, but I notice she ate it all. The chocolate shakes were pretty good, too.
Sonic is at the back of the Springhurst Center, close to the megalo-wine shop, Party Source, and Tinseltown. It's a long drive out there from the city, but it was fun, and we'll probably do it again. $
Other Sonic locations in Louisville include 2300 Crittenden Drive, 8600 Ambrosse Lane, 2010 S. Highway 53, 3106 Preston Highway, and 632 Winkler Ave.