A real 1957 Chevrolet Bel Air sits inside one Indiana diner, and it’s been turned into a booth. You can eat lunch in a classic car.
I can’t think of a more fitting seat for a giant sandwich.
That sandwich is a breaded pork tenderloin called the Hubcap. The name tells you everything about its size.
I’m glad the bun actually keeps up with the meat, because there’s nothing more disappointing than a sandwich that falls apart halfway through.
The whole place leans hard into the 1950s and 1960s. Elvis and Marilyn Monroe smile from the walls.
Checkered patterns run across the floor and ceiling, and red vinyl booths fill the room.
Then there’s the burger challenge that most people lose. Only a small group has ever finished it.
Between the Hubcap and that monster burger, I’d have a hard time deciding which one deserves a first visit.
The Sandwich That Earned Its Car-Part Name Honestly
Hubcaps are round, flat, and wide, and so is the star of The Knuckle Sandwich. The Hubcap Tenderloin is a breaded pork tenderloin, pounded thin and fried to a golden crisp.
Size gets the attention first. Plenty of Indiana tenderloins hang way past their buns like a pancake on a dinner roll.
This one is different in a smart way. The bun is sized up to match, so the toppings actually reach every bite.
It comes dressed with fresh pickles and crisp lettuce on a soft bun. A signature sauce sometimes joins the party too.
Indiana takes its tenderloins seriously, so earning a nickname like this means something. The sandwich has become the most talked-about item on the menu.
Sharing is a reasonable plan here. Half of a Hubcap can fill up a lot of appetites, and nobody will judge you for a to-go box.
Fries and onion rings are popular sidekicks. Just remember that your stomach only has so much room.
A good tip is to order it early in your meal decisions. Everything else can wait until you see how much tenderloin is staring back at you.
You Can Actually Eat Lunch Inside a 1957 Chevy
Most diners hang a picture of a classic car on the wall. Here, the car itself is part of the dining room.
A genuine 1957 Chevrolet Bel Air has been converted into a working booth. You slide in, sit down, and eat inside a piece of American road history.
The Bel Air is one of the most famous cars of its era. Its sharp fins and shiny chrome helped define what the 1950s looked like.
Kids tend to think it’s the coolest seat in the building. Grownups who remember these cars probably feel the same way, just more quietly.
The booth also plays a starring role in the diner’s big food challenge. Challengers take on their mission while seated right inside the Chevy.
That gives the car a bit of a stage feel. Anyone sitting nearby gets a front-row view of the action.
There’s no promise you’ll land this spot on every visit. It’s one booth in a busy room, after all.
Still, it’s worth asking about when you arrive. Few meals in Indiana come with a seat this memorable, and the photos alone make the request worth it.
Two Pounds of Burger, 45 Minutes, and a Very Exclusive Wall
Ten wins in fifty tries. That was the record for the ’57 Chevy Burger Challenge as of December 2024, and it shows how tough this one is.
The rules sound simple enough on paper. You must eat two fully dressed, one-pound burgers plus two pounds of french fries.
The clock gives you 45 minutes. That’s a lot of chewing with very little time to rest.
Winners get the meal for free. They also take home a T-shirt and a trophy.
The best prize might be the Wall of Fame. Your photo goes up for everyone to see, right inside the restaurant.
Thinking about trying it? Pace yourself and skip the big breakfast that morning.
Drinking lots of liquid early can fill you up fast. Many eating pros suggest small sips and a steady rhythm instead.
Not into competitive eating? The challenge is still fun to watch from a nearby table.
Plus, you can order a regular ’57 Chevy Burger without any timer. It’s a classic burger that lets you enjoy every bite at your own speed, with zero pressure and no trophy required.
Elvis, Marilyn, and Checkerboards Everywhere You Look
Black and white checks cover the floor. Look up, and the ceiling repeats the pattern like a giant game board.
The interior of The Knuckle Sandwich fully commits to the 1950s and 1960s. Red vinyl booths line the room, and chrome accents catch the light.
Tables come in both round and square shapes. That mix helps groups of all sizes find a comfortable fit.
Then there are the walls. Pictures of Elvis and Marilyn Monroe share space with old-school advertisements and vintage memorabilia.
Route 66 nostalgia shows up too, along with car fronts turned into tables. The whole effect feels part diner and part classic-car showroom.
Your eyes will stay busy the entire meal. Even the wait for your food becomes a little scavenger hunt.
The checkout area keeps the old-style look going as well. Nothing breaks the time-machine mood on your way out.
The atmosphere stays friendly and relaxed rather than fancy. Nobody needs dress clothes to enjoy a milkshake under a picture of the King.
Families, couples, and solo diners all blend right in. It’s a room built for smiling, not shushing.
A Highway Pushed Them Out, So They Built Something Better
Road construction ended the first chapter of this story. It definitely didn’t end the restaurant.
Owners Brent and Linda Plunkett have worked in the restaurant business since 2010. Their original Knuckle Sandwich opened on State Road 144 in 2013.
That spot ran for nearly a decade. Then the Interstate 69 expansion project forced it to close in August 2020.
Many owners might have called it quits right there. The Plunketts spent about two and a half years searching for a new home instead.
Their patience paid off in February 2023. The diner reopened roughly six miles east of the old location.
The new place sits in a 3,500-square-foot building built in 2022. Black and white checks, stone details, and retro signage give the outside a true diner look.
It’s a comeback tale that fits the theme nicely. Classic cars get restored, and so did this classic diner.
Linda still adds her own touch to the menu. She prepares daily specialty lunch dishes Monday through Thursday, like calzones or chicken and noodles.
That personal effort keeps the place feeling homegrown. You can taste the family behind the building.
The Menu Reads Like a Rock and Roll Playlist
Elvis’ Rockin’ Reuben. The Big Bopper BLT.
The Giant Hound Dog.
Naming food after rock stars could feel silly somewhere else. At this diner, it fits right in with the jukebox-era décor.
The menu goes well beyond the Hubcap. Patty melts, grilled chicken, and plenty of hamburgers all have a place.
The Betty Boop Bacon Burger and a 50s Philly Steak keep the theme rolling. Coney dogs with chili and cheese bring classic comfort to the lineup.
Onion rings stand out as a favorite side. Crispy fries are a solid backup choice when rings aren’t your thing.
Pizza shows up too, which surprises some first-timers. You can pick hand-tossed or Sicilian-style crust.
Indecisive eaters, beware. The menu is big enough to cause a serious case of ordering panic.
A smart move is to split a few items with your table. That way everyone samples more of the playlist.
Linda’s Monday through Thursday lunch specials add another option. They change daily, so it pays to ask what’s cooking before you commit.
Breakfast Gets the Same Big Treatment
Doors open at 8 a.m. on most days the diner is open. That means the Hubcap isn’t the only reason to show up hungry.
The Knuckle Sandwich serves breakfast, lunch, and dinner. Morning plates bring diner classics like eggs, bacon, and fried potatoes.
Homemade biscuits and sausage gravy are on hand too. Swapping toast for a biscuit is a popular move for bigger appetites.
Coffee rounds things out for early risers. The retro room feels especially cozy with a warm mug in hand.
Sunday is a great breakfast day here. Hours are shorter that day, closing at 2 p.m.
Plan ahead for Mondays, though. The diner is closed, so don’t make the drive expecting pancakes.
Tuesday through Thursday run until 8 p.m. Friday and Saturday stretch until 9 p.m. for later dinners.
Breakfast can be a smart strategy for first-time visitors. You get the full atmosphere before the busiest lunch and dinner hours.
Plus, a hearty morning meal at an Indiana diner is a tradition worth keeping. It’s hard to beat checkered floors and fresh biscuits.
Save Room, Because the Shakes Steal the Show
Vanilla, chocolate, and strawberry. Those three milkshake flavors are pure diner tradition, and they’re right at home here.
Shakes rank among the most talked-about treats at The Knuckle Sandwich. The strawberry gets especially high praise.
Desserts go beyond shakes, too. Ice cream sundaes and banana splits round out the sweet side of the menu.
Portions tend to be generous. Many desserts are big enough to share with a friend or two.
Some families even stop in just for ice cream. That says plenty about how good the dessert lineup is.
Here’s the tricky part. After a Hubcap, finding stomach space for a sundae takes real planning.
One solution is to share your main dish. Another is to come back on a different day just for dessert.
A milkshake in a retro diner also makes a perfect photo. Red booths and chrome in the background do all the work for you.
Kids love the shakes, but grownups won’t be left out. A cold shake under an Elvis poster feels like a tiny vacation to another decade.
An Easy Drive South of Indianapolis Pays Off
Bargersville sits just south of Indianapolis. It blends small-town charm with easy access from the city.
You’ll find The Knuckle Sandwich at 5116 IN-135, Ste A, Bargersville, IN 46106. The highway location makes it simple to spot.
Parking is plentiful, which helps on busy days. No circling the block hoping for a lucky space.
The checkered exterior is hard to miss from the road. Retro signage practically waves you in.
Patio seating is sometimes offered as well. It’s a nice option on a pleasant Indiana afternoon.
The dining room can fill up during peak times. Arriving a little early or late can make your visit smoother.
Group trips work well here. Round and square tables give bigger parties some flexibility.
The diner makes a fun stop on a road trip through central Indiana. It also works as a weekend outing with the kids.
Bring a camera and an empty stomach. Between the Chevy booth, the Hubcap, and the shakes, you’ll leave with stories and probably leftovers too.
