You’re standing on a busy corner in downtown Chicago, the wind whipping off Lake Michigan, and you’ve got a trunk full of bags and a family ready for a weekend in St. Louis. The I-55 corridor is calling. It is three hundred miles of cornfields, wind turbines, and the occasional roadside attraction. You want to make this trip in an electric vehicle, but the question keeps nagging at you: which one?
At Frontier Tesla, we hear this every single day. Choosing the best Tesla to rent for road trip success isn't just about picking a cool color or the fastest 0-60 time. It’s about the physics of luggage, the chemistry of batteries, and the ergonomics of sitting in a seat for five hours. Let’s break down the Chicago-to-St. Louis run and find your perfect match.
The Luggage Equation: Can Four Adults Fit in a Model 3?
Here is the most common concern we field from groups heading south. Does the Model 3 have enough luggage space for 4 adults going to St. Louis? The short answer is yes, but with a major caveat. You have to pack like a pro, not a pack rat.
The Tesla Model 3 offers approximately 15 cubic feet of space in the rear trunk and another 3.1 cubic feet in the "frunk" (front trunk). That is a total of 18.1 cubic feet. For four adults, this translates to roughly one carry-on sized suitcase and one soft-sided backpack per person.
The Art of the Tesla Pack
I’ve found that the secret to the Model 3 isn't the total volume, but the shape. The trunk is deep. However, the opening is a bit narrow compared to a hatchback. If your group is bringing four hard-shell "checked-bag" sized suitcases, you are going to have a bad time.
But here’s the thing. If you use duffel bags or soft-sided luggage, the Model 3 swallows gear surprisingly well. We’ve seen families fit a stroller and two bags in the sub-trunk alone. That hidden compartment under the main trunk floor is a lifesaver for things like charging cables, shoes, or that emergency bag of Garrett Popcorn you bought before leaving the Loop.
Why the Frunk Matters
Don't ignore the frunk. It’s the perfect spot for four sets of toiletries or a shared snack bag. By moving the "soft goods" to the front, you keep the rear trunk clear for the heavy hitters. Is it tight? Sure. Is it doable for a three-day weekend in the Lou? Absolutely.
Range Anxiety vs. Range Reality on I-55
The next big question usually involves the "long haul" capability. Is the Model Y range significantly better for the I-55 route? When you look at the raw numbers, the gap seems significant, but the reality on the road is more nuanced.
A standard Model 3 Rear-Wheel Drive (RWD) offers about 272 miles of range. A Model Y Long Range bumps that up to around 310-330 miles. On a 300-mile trip from Chicago to St. Louis, neither car is going to make it on a single charge if you’re driving at Illinois highway speeds (which, let’s be honest, usually hover around 75-80 mph).
The I-55 Charging Corridor
The good news is that I-55 is one of the best-served EV routes in the Midwest. You have high-speed V3 Superchargers in Bloomington-Normal, Springfield, and Edwardsville.
According to a 2024 analysis of Midwest charging infrastructure, the density of chargers along I-55 means you’ll never be more than 60 miles from a 250kW plug. Because you have to stop anyway, the extra 40 miles of range in the Model Y doesn't actually save you a stop. It just changes how long that stop lasts.
Wind, Weather, and Watts
Here is something people forget. The Model 3 is more aerodynamic than the Model Y. It has a lower drag coefficient (0.219 vs 0.23). On a windy day in the Illinois plains—and it is always windy—the Model 3 often sees less "range hit" from headwinds than the taller, boxier Model Y.
If you’re driving the Model 3, you might arrive at the Springfield Supercharger with 15% battery. In the Model Y, you might have 22%. Both cars will need about 15-20 minutes of charging to get you comfortably to the Gateway Arch. So, while the Model Y has more range on paper, the "time-to-destination" is nearly identical.
Highway Comfort: Which Model Wins the Long Haul?
When people ask which Tesla model is more comfortable for a long highway road trip, they are usually thinking about two things: seat height and ride quality. This is where the two cars diverge sharply.
The "Command" Seating Position
The Model Y is built on the same platform as the Model 3, but it sits much higher. You’re not just higher off the ground; the seats themselves are mounted on "risers." For a long trip, this is a game-changer for your knees.
In the Model 3, you’re sitting low. It feels like a sports sedan. Your legs are extended more horizontally. If you’re under 30 or a fan of spirited driving, you’ll love it. But if you’re doing 5 hours on a flat highway, that "stadium seating" in the Model Y reduces fatigue. You can shift your weight more easily. Your hip point is higher, making it easier to get in and out at rest stops.
Suspension and Road Noise
We’ve noticed that the newer Model 3 "Highland" refreshes (which we carry at Frontier Tesla) have significantly improved sound dampening. They are whisper-quiet. The Model Y, however, has a larger cabin volume, which can sometimes act as an echo chamber for road noise from the rear wheel wells.
That said, the Model Y’s suspension is tuned for a slightly softer ride than the performance-oriented Model 3. On the patched-up sections of I-55 near Joliet, you’ll feel the bumps a bit more in the 3. The Y soaks them up with a bit more grace.
The Autopilot Factor: Stress-Free Navigation
Regardless of which model you rent from us, you’re getting a self-driving-capable machine. This is the "secret sauce" for the Chicago to St. Louis run.
Driving through the construction zones near Dwight or navigating the interchange madness in Springfield is exhausting. Tesla’s Basic Autopilot (included in all our rentals) handles the steering, braking, and acceleration within your lane.
Why FSD is Worth the Upgrade
If you opt for the Full Self-Driving (FSD) capability, the car will handle lane changes to pass slower trucks and even navigate the interchanges from I-55 to I-64. I've found that using FSD on long stretches of the Midwest reduces "mental fatigue" by about 70%. You arrive in St. Louis feeling like you just sat on your couch for four hours rather than wrestling a steering wheel.
Cost Comparison: Rental Value and Charging Fees
Let’s talk numbers. Usually, the Model 3 is the more budget-friendly option. If you’re a couple or a small family with young kids, the savings on the daily rental rate can pay for your dinner at a nice steakhouse in Clayton.
Charging Costs on I-55
Supercharging isn't free, but it's significantly cheaper than gas. For the full trip from Chicago to St. Louis, you can expect to spend between $25 and $35 in total charging fees, depending on how heavy your foot is. Compare that to a mid-sized SUV getting 25 mpg, which would cost you roughly $50-$60 at current Illinois gas prices.
The Frontier Tesla Advantage
When you rent from us downtown, you aren't just getting a car. You’re getting a pre-conditioned battery and a full charge. We also handle the toll pass (I-Pass), which is essential for getting out of Chicago without a headache.
Key Takeaways for Your Trip
If you're still on the fence, here is the "cheat sheet" we give our customers:
- Choose the Model 3 if: You are 1-2 people, or 4 adults with very light luggage. You want the most efficient, sporty feel and want to save a bit on the rental cost.
- Choose the Model Y if: You have 4 adults with standard luggage, or kids who need extra legroom. You prefer a higher seating position and a slightly softer ride for the long highway stretches.
- The "Range" Myth: Don't pick the Y just for the range. Both cars will require one 20-minute stop in Springfield or Bloomington. Pick based on space and comfort.
Frequently Asked Questions
Is there a Supercharger near the Gateway Arch?
Yes. There are several high-speed chargers in the downtown St. Louis area, including ones near the Convention Center and across the river in East St. Louis. Most major hotels in St. Louis (like the Four Seasons or the Hyatt Regency) also offer "Destination Charging" for guests.
Can I use the Tesla App with my rental?
At Frontier Tesla, we provide you with mobile access. This means you can use your phone as the key, pre-heat the car from your hotel room, and monitor charging progress while you’re grabbing a burger at Horseshoe Beer Co. in Collinsville.
What happens if I hit traffic in Chicago?
Teslas are actually more efficient in stop-and-go traffic than on the highway. While gas cars waste energy idling, the Tesla uses almost nothing while standing still. If you get stuck on the Dan Ryan, don't sweat it. Your range won't plummet.
Final Thoughts: Making the Drive Part of the Vacation
The drive from Chicago to St. Louis has a reputation for being a chore. It’s the "flyover" part of the state. But when you’re behind the wheel of a Tesla, the perspective shifts. You stop looking for the next gas station and start looking for the next cool place to plug in.
Maybe you grab a coffee in Uptown Normal while the car gains 150 miles of range in the time it takes to drink a latte. Maybe you let the car handle the steering while you actually talk to your passengers.
Which Tesla should you rent? If you have the budget and the bodies, go for the Model Y. The extra breathing room is worth every penny on I-55. But if you want a sleek, efficient, and tech-forward "commuter" for the weekend, the Model 3 will not let you down.
Ready to hit the road? Pick up your self-driving-capable Tesla in downtown Chicago and see why the best Tesla to rent for road trip adventures is the one that fits your family's unique footprint.
Sources: Tesla Model 3 Specifications - Official technical data on range and storage. Tesla Model Y Specifications - Official technical data on seating and dimensions. PlugShare I-55 Map - Real-time charging station density and reliability data. AAA EV Road Trip Study 2024 - Comparative analysis of EV vs. Gas road trip expenses.