MDX vs Polestar 3
The MDX and the Polestar 3 land in the same midsize luxury suv category, so the comparison is fair, and the differences are telling. What you gain on one side you give up on the other: the MDX wins on space & practicality, the Polestar 3 on engine & performance.
At a glance
- Engine & Performance Polestar 3 wins
- Space & Practicality MDX wins
- Off-road & Towing Tie
- Engine & Performance0.9
- Engine & Performance7.4
Spec scores (0 to 10) are calculated from manufacturer specs against other models in the same class. See how the formula works. They are not reviews or user ratings.
Key Differences
-
The Polestar 3 has 199 hp more power
The MDX is clearly behind on total system output (290 hp against 489 hp), and that’s one of its biggest weak spots in this matchup. The Polestar 3’s extra output gives it more in reserve when you need to get up to speed.
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The MDX has room for 7 seats
On this line of the spec sheet, the MDX is in a different league: 7 seats, next to 5 seats for the Polestar 3. Extra seats mean you can take more people along without taking a second car.
-
The Polestar 3 has 353 lb-ft more torque
For torque, the Polestar 3 leads by a wide margin: 620 lb-ft versus 267 lb-ft. The Polestar 3’s extra torque makes it more relaxed when fully loaded or towing.
-
The MDX has
The MDX lists 67.9 in for height, against 63.5 in for the Polestar 3. Neither is better; it depends on what you prefer. Neither is better in general; it depends on your garage and your preferences.
Design & Size
- MDX 198.4 in × 78.7 in × 67.9 in
- Polestar 3 192.9 in × 77.5 in × 63.5 in
The Polestar 3 is the smaller car here, which some buyers will see as a plus and others as a compromise.
Dimensions
| Spec | MDX | Polestar 3 |
|---|---|---|
| Length | 198.4 in | 192.9 in |
| Width (no mirrors) | 78.7 in | 77.5 in |
| Height | 67.9 in | 63.5 in |
| Wheelbase | 113.8 in | 117.5 in |
Engine & Performance
Polestar 3 leads
The Polestar 3 dominates the engine & performance section, and the gaps are large enough to matter in daily use. In its favor, the Polestar 3 has 199 hp more power. More power helps with merging, overtaking and climbing hills, especially with passengers and luggage on board. If engine & performance is your priority, the Polestar 3 is the car to pick.
Total system output
MDX: 290 hp Polestar 3: 489 hp Power is only part of the story; weight, gearing and torque delivery shape how quick a car feels.
Torque
MDX: 267 lb-ft Polestar 3: 620 lb-ft More torque means stronger pulling from low speeds, which you feel when accelerating from a stop or climbing grades.
Space & Practicality
MDX leads
This section belongs to the MDX. In space & practicality, it leads the Polestar 3 by a margin that’s hard to ignore. The MDX wins here with room for 7 seats. Third-row seats are often best for kids, so check legroom figures if adults will sit there. The takeaway: on space & practicality, the MDX is the stronger car.
Seats
MDX: 7 seats Polestar 3: 5 seats The MDX has room for more passengers, useful for growing families and carpools.
Off-road & Towing
Too close to call
This is a tie in all but name. On off-road & towing, both deliver about the same. So off-road & towing is a non-factor here; move on to the areas where they actually differ.
Safety & Tech
The safety & tech entries below are descriptive rather than numeric. Read them side by side to see where the MDX and the Polestar 3 part ways.
Full Specifications
Engine & Performance
| Spec | MDX | Polestar 3 |
|---|---|---|
| Powertrain | Gas | Battery electric |
| Engine | 3.5L V6 | Dual electric motors, 111 kWh battery |
| Total system output | 290 hp | 489 hp (winner) |
| Torque | 267 lb-ft | 620 lb-ft (winner) |
| Transmission | 10-speed automatic | Single-speed direct drive |
| Drivetrain | FWD (SH-AWD available) | AWD |
Fuel Economy & Range
| Spec | MDX | Polestar 3 |
|---|---|---|
| Fuel economy (combined)EPA estimate where available | 22 mpg | N/A (not specified) |
| Fuel economy (city) | 19 mpg | N/A (not specified) |
| Fuel economy (highway) | 26 mpg | N/A (not specified) |
| Electric range | N/A (not specified) | 315 mi |
| Fuel tank | 18.5 gal | N/A (not specified) |
Space & Practicality
| Spec | MDX | Polestar 3 |
|---|---|---|
| Seats | 7 seats (winner) | 5 seats |
| Cargo (behind rear seats) | 16.3 cu ft | N/A (not specified) |
| Cargo (seats folded) | 71.4 cu ft | N/A (not specified) |
Off-road & Towing
| Spec | MDX | Polestar 3 |
|---|---|---|
| Max towing | 5,000 lb | N/A (not specified) |
| AWD / 4WD available | Yes | Yes |
Safety & Tech
| Spec | MDX | Polestar 3 |
|---|---|---|
| Largest touchscreen | 12.3 in | N/A (not specified) |
| Driver-assist suite | AcuraWatch | N/A (not specified) |
| Basic warranty | 4 yr / 50,000 mi | 4 yr / 50,000 mi |
Dimensions
| Spec | MDX | Polestar 3 |
|---|---|---|
| Length | 198.4 in | 192.9 in |
| Width (no mirrors) | 78.7 in | 77.5 in |
| Height | 67.9 in | 63.5 in |
| Wheelbase | 113.8 in | 117.5 in |
Price
| Spec | MDX | Polestar 3 |
|---|---|---|
| Starting MSRP | $51,800 | N/A (not specified) |
“N/A” means the manufacturer does not specify the value or we could not confirm it. Figures marked “manufacturer rating” are the maker’s own claims, not our measurements.
Which One Should You Buy?
Choose the MDX if…
- you regularly carry extra passengers (7 seats vs 5 seats)
- you prefer a larger car and have the room for it
- you already know your way around Acura’s products
Choose the Polestar 3 if…
- you merge, overtake or climb hills with a full load (489 hp vs 290 hp)
- you often drive loaded up or with a trailer (620 lb-ft vs 267 lb-ft of torque)
- you prefer something easier to fit into tight spaces
Also Compared
Frequently Asked Questions
Should I buy the MDX or the Polestar 3?
It depends on your priorities: the MDX is stronger on space & practicality, while the Polestar 3 leads on engine & performance.
Which is larger, the MDX or the Polestar 3?
The Polestar 3 is actually the more compact one. It measures 192.9 × 77.5 × 63.5 in, while the MDX comes in at 198.4 × 78.7 × 67.9 in.
Executive Summary
The MDX and the Polestar 3 come from rival camps, Acura and Polestar, but they’re chasing the same person: you. If I had to name one reason, it’s that the MDX brings room for 7 seats. Still, if you care most about 199 hp more power, the Polestar 3 deserves a look.
I’d match them like this: space & practicality to the MDX, engine & performance to the Polestar 3.
My pick: decide whether you’d miss space & practicality or engine & performance more, then buy the MDX or the Polestar 3 accordingly.
Personal opinion based on the data above. Your priorities may differ.