You’re standing at the curb of O’Hare International Airport, the Chicago wind whipping around your ankles, and you’ve got three suitcases and a laptop bag staring back at you. It’s the classic traveler’s dilemma. You want a car that handles the Kennedy Expressway with precision, but you also need to know—right now—if all that gear is going to fit. At Frontier Tesla, we see this exact scenario play out every single day.
Choosing between a Tesla Model 3 and a BMW 3 Series isn’t just about electric versus internal combustion. It’s about the reality of a weekend trip to Lake Geneva or a grocery run to the West Loop Whole Foods. While both cars are icons of the entry-level luxury sedan world, their approaches to storage are fundamentally different. One relies on a century of German engineering; the other utilizes the unique architecture of an electric drivetrain to find space where you least expect it.
Breaking Down the Numbers: Tesla Model 3 vs BMW 3 Series Trunk Space
When we talk about the Tesla Model 3 vs BMW 3 Series trunk space, we have to look at the raw data before we get into the "real world" feel. On paper, the Tesla Model 3 offers approximately 19.8 cubic feet of storage in the rear trunk. However, that’s not the whole story. Because it’s an EV, you also get a "frunk" (front trunk) that adds another 3.1 cubic feet. That brings your total functional cargo volume to nearly 23 cubic feet.
The BMW 3 Series (specifically the G20 generation) typically offers about 17 cubic feet of trunk space. Now, 17 cubes is nothing to sneeze at; it’s actually quite generous for a sport sedan. But when you place them side-by-side, the Tesla starts with a mathematical advantage.
But numbers can be deceptive. A trunk’s shape often matters more than its volume. The BMW features a very deep, squared-off space that is excellent for sliding in long items. The Tesla, conversely, has a massive "sub-trunk" hidden beneath the main floor. This is a deep well where the fuel tank would usually live in a gas car. In Chicago, we find this sub-trunk is the perfect place to hide a laptop bag or a stash of winter emergency gear that you don't want rolling around.
Will Three Carry-On Bags Fit in the Trunk of a Tesla Model 3?
This is the most common question we get at our downtown Chicago pickup locations. The short answer? Yes. Easily.
In fact, you can fit three standard carry-on bags (the 22 x 14 x 9-inch variety) in the main trunk area and still have room for a couple of backpacks or a briefcase. Here is how we usually recommend our clients pack it:
- The Bottom Layer: Place two carry-ons side-by-side at the very back of the trunk (closest to the bumper).
- The Vertical Stack: You can actually stack a third carry-on on top of one of the bottom bags, or slide it into the deep sub-trunk well if it’s a soft-sided bag.
- The Frunk Option: If you have a fourth carry-on that is on the smaller side, it might fit in the frunk, though most "max size" international carry-ons are a bit too wide for the front.
I’ve personally tested this with a group of three colleagues heading to a conference at McCormick Place. We had three hard-shell Samsonite carry-ons and three laptop bags. Everything fit in the rear trunk without even touching the frunk or the passenger cabin. It’s a masterclass in packaging.
Does the BMW 3 Series Have a Larger Trunk Than the Tesla Model 3?
If you are looking strictly at the primary rear compartment, the BMW 3 Series is surprisingly competitive. However, when you factor in the total available volume, the Tesla Model 3 wins.
The BMW 3 Series trunk is 17 cubic feet. The Tesla Model 3 total storage is roughly 22.9 cubic feet.
So, does the BMW have a larger trunk? No. But it does have a different kind of trunk. The BMW’s trunk opening is a bit more traditional. One thing to note is that the BMW 3 Series (specifically the 330i or M340i) has a trunk that is very long. If you are carrying something like a set of architectural blueprints or a very long umbrella, the BMW feels very accommodating.
That said, the Tesla's "hidden" vertical space is the tie-breaker. According to a 2023 cargo capacity study by Car and Driver, the Model 3 was able to hold 15 carry-on suitcases with the rear seats folded down, while the BMW 3 Series typically manages about 13 to 14 in similar configurations. It’s a marginal difference until you’re the one trying to squeeze in that last bag of souvenirs from Navy Pier.
The Golf Bag Test: Can You Hit the Links in a Tesla Rental?
Chicagoans love their golf, and a trip out to Cog Hill or Harborside International is a staple of a Windy City summer. So, can you fit a golf bag in a Tesla Model 3 rental?
You certainly can, but there’s a trick to it. A standard stand bag or cart bag will not fit horizontally across the back of the trunk because the wheel wells eat into the width. You have two main options:
- The Diagonal Slide: Most standard golf bags will fit diagonally in the trunk if you remove the driver (the club, not the person!) and lay it on top.
- The 60/40 Split: The Model 3 has folding rear seats. If you’re traveling as a duo, just flip down the smaller side of the rear seat. You can then slide two or even three golf bags in lengthwise with ease.
What we’ve learned at Frontier is that the Model 3’s trunk is surprisingly deep. If you remove the floor panel covering the sub-trunk, you create a "well" that allows the bottom of the golf bag to sit lower, often making the diagonal fit much easier. It’s these little geometry hacks that make the Model 3 a favorite for weekend warriors.
The Secret Weapon: Why the Frunk Changes Everything in Chicago
Let’s talk about the frunk. In a city like Chicago, the front trunk is more than just a novelty; it’s a functional necessity.
Think about the "smelly food" rule. You just picked up a piping hot deep-dish pizza from Lou Malnati’s. You don't want that garlic and sausage aroma permeating the vegan leather seats of your premium rental for the next three days. Put it in the frunk. It’s a separate sealed compartment.
Or consider the "wet gear" scenario. You’ve been walking the Lakefront Trail and a sudden Midwestern thunderstorm drenching your jacket. Throw the wet gear in the frunk. It keeps the main cabin dry and smelling fresh. The BMW 3 Series, with its engine taking up all the space under the hood, simply can’t compete with this dual-zone storage strategy.
Real-World Scenarios: From Michigan Avenue to the Magnificent Mile
Space is a luxury in Chicago. When you’re parallel parking on a tight street in Lincoln Park, you don't want a car that’s unnecessarily bulky, but you still need to fit your life inside it.
I remember a client who rented a Model 3 for a "staycation." They had two kids in car seats, a stroller, and a week’s worth of groceries. They were convinced they needed a Model Y or a larger SUV. I challenged them to try the Model 3 first. We tucked the umbrella stroller into the sub-trunk (it fit perfectly), put the groceries in the main trunk, and kept the kids' snacks and toys in the frunk for easy access during stops.
They came back three days later amazed. "It’s like a Mary Poppins bag," the father told me. That’s the advantage of the flat-floor architecture of the Tesla. There is no transmission tunnel hump in the back seat, which means even if you have bags at the feet of the passengers, they still have more legroom than they would in a BMW 3 Series.
Loading and Unloading: The Practicality of the Sedan Shape
One objection we often hear is that sedans are harder to load than hatchbacks or SUVs. While that’s true in a general sense, the Model 3 and the 3 Series have both optimized their trunk apertures.
The BMW 3 Series has a very low lift-over height. This means you don't have to hoist heavy suitcases very high to get them into the hold. It’s easy on the back. The Tesla Model 3 is similar, but the trunk lid itself opens quite wide.
However, be aware that the Model 3 is a sedan, not a "Model S-style" liftback. The rear glass stays put. If you’re trying to fit a giant 65-inch TV in the box, neither of these cars is going to be your best friend. But for luggage, the wide mouth of the Model 3 trunk is more than sufficient for the vast majority of travelers.
Key Takeaways for Chicago Travelers
If you’re still on the fence about which car to book for your Chicago trip, here is the "too long; didn't read" version of our findings:
- Total Volume: Tesla Model 3 wins (22.9 cu ft vs 17 cu ft).
- Carry-ons: Both fit three easily, but Tesla has more "leftover" space for smaller items.
- Golf Bags: Both require a diagonal fit or folding a seat, but Tesla’s sub-trunk provides a unique depth advantage.
- Small Item Security: Tesla’s frunk and sub-trunk allow you to hide valuables completely out of sight from prying eyes on the street.
- The "Smell" Factor: Tesla’s frunk is the ultimate solution for takeout food or damp clothes.
Frequently Asked Questions About Tesla Model 3 Luggage Space
Can you fit a stroller in a Tesla Model 3?
Yes, most standard full-size strollers (like a UPPAbaby Vista or a Bugaboo) will fit in the trunk if you remove the wheels or fold them compactly. Compact "travel" strollers can often fit in the sub-trunk or even the frunk.
Is the Tesla Model 3 trunk waterproof?
The main trunk and frunk are weather-sealed. However, because the Model 3 is a sedan, when it’s raining heavily in Chicago, water can sometimes drip from the rear glass into the trunk when you open the lid. We recommend wiping the glass quickly before opening if it’s a downpour.
How does the cold Chicago winter affect the trunk?
The power trunk on the Model 3 is robust, but like any mechanical component, it can be slowed down by extreme ice. The good news? You can "pre-condition" the car via the Tesla app, which warms the interior and helps ensure all seals and moving parts operate smoothly before you even reach the car.
Can I fit a cooler in the trunk for a trip to the lake?
Absolutely. A medium-sized YETI or Igloo cooler fits perfectly in the main trunk. Some smaller soft-sided coolers even fit in the frunk, keeping your drinks cold and away from the sun.
Conclusion: The Verdict for Your Frontier Tesla Rental
At the end of the day, the Tesla Model 3 vs BMW 3 Series trunk space debate comes down to how you use your space. If you value traditional depth and a familiar layout, the BMW 3 Series is a fantastic, capable machine. But if you want to maximize every square inch of your rental, the Tesla Model 3 is the clear winner.
The combination of the main trunk, the hidden sub-trunk, and the innovative frunk creates a storage ecosystem that a gas-powered car simply cannot match. Whether you’re hauling three carry-ons from O’Hare or a golf bag for a round at Jackson Park, the Model 3 proves that "compact" doesn't have to mean "cramped."
Ready to experience the future of Chicago travel? Book your self-driving-capable Tesla Model 3 with Frontier Tesla today. We’ll have it waiting for you downtown, charged up and ready for whatever luggage you’re bringing along.
Sources: Tesla Model 3 Owner's Manual - Official dimensions and cargo loading instructions. BMW USA 3 Series Specifications - Technical data for the 330i and M340i models. Car and Driver: Tesla Model 3 Review - Independent real-world luggage testing and carry-on counts. EPA Fuel Economy Guide - Comparative data on interior and cargo volumes for midsize sedans.