MDX vs XT6
The MDX and the XT6 sit in the same midsize luxury suv class, but Acura and Cadillac don’t always agree on what matters most. Scoring each area separately, the MDX comes out on top 3 times out of 4. Its lead is sharpest in engine & performance.
At a glance
- Engine & Performance MDX wins
- Fuel Economy & Range XT6 wins
- Space & Practicality MDX wins
- Off-road & Towing MDX wins
- Price XT6 wins
- Engine & Performance0.9
- Fuel Economy & Range7.9
- Space & Practicality5.0
- Off-road & Towing5.5
- Engine & Performance0.0
- Fuel Economy & Range8.6
- Space & Practicality4.7
- Off-road & Towing4.0
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
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The MDX has 29% more cargo space
It’s a lopsided result (16.3 cu ft for the MDX, 12.6 cu ft for the XT6) and one of the main reasons to choose between them. The MDX’s larger cargo area makes family trips and big shopping runs easier.
-
The MDX has 55 hp more power
The spread here is large: 290 hp on the MDX versus 235 hp on the XT6. Expect to notice it. Power is only part of the story; weight, gearing and torque delivery shape how quick a car feels.
-
The MDX has 1,000 lb more towing capacity
Of all the specs we compared, this is one where the MDX makes its strongest case: 5,000 lb against 4,000 lb. Towing ratings depend on configuration and equipment, so check the exact trim you’re looking at.
-
The XT6 has 10% more maximum cargo space
A modest but measurable lead goes to the XT6: 78.7 cu ft compared with 71.4 cu ft. Maximum cargo space with the seats folded matters when you move furniture, bikes or bulky gear.
-
The XT6 has better city fuel economy
The XT6 is slightly stronger on fuel economy (city). The gap, 21 mpg versus 19 mpg, won’t change your life, but it isn’t nothing. In town, driving style has a big effect, but the XT6 starts from a better baseline.
Design & Size
If you already know the size you like, the MDX and the XT6 should suit you equally.
Dimensions
| Spec | MDX | XT6 |
|---|---|---|
| Length | 198.4 in | 198.8 in |
| Width (no mirrors) | 78.7 in | N/A (not specified) |
| Height | 67.9 in | N/A (not specified) |
| Wheelbase | 113.8 in | 112.7 in |
Engine & Performance
MDX leads
The engine & performance numbers point firmly in one direction: toward the MDX. The MDX scores with 55 hp more power. The MDX’s extra output gives it more in reserve when you need to get up to speed. Weighing only engine & performance, the MDX comes out ahead.
Total system output
MDX: 290 hp XT6: 235 hp More power helps with merging, overtaking and climbing hills, especially with passengers and luggage on board.
Fuel Economy & Range
XT6 leads
On fuel economy & range, the difference is modest, and it favors the XT6. The XT6 gives you better city fuel economy. City fuel economy matters most if your driving is mostly short trips, traffic and stop-and-go commutes. So if fuel economy & range tops your list, lean toward the XT6.
Fuel economy (city)
MDX: 19 mpg XT6: 21 mpg Hybrids often shine in the city, and the XT6 has the better rating here.
Space & Practicality
MDX leads
The MDX clearly takes the space & practicality round. The MDX adds 29% more cargo space. Cargo figures are measured in different ways by different makers, so small gaps may not show in practice. The XT6 has the edge with 10% more maximum cargo space. Bottom line for space & practicality: the MDX has the edge.
Cargo (behind rear seats)
MDX: 16.3 cu ft XT6: 12.6 cu ft Cargo space behind the rear seats is what you use every day for groceries, strollers and luggage.
Cargo (seats folded)
MDX: 71.4 cu ft XT6: 78.7 cu ft The XT6 can swallow more with the seats down, which makes it more versatile for occasional big loads.
Off-road & Towing
MDX leads
Here the MDX opens up one of its biggest leads in the comparison. Point to the MDX for 1,000 lb more towing capacity. A higher towing capacity lets you pull bigger trailers, boats and campers. For off-road & towing, the MDX is the one to beat.
Max towing
MDX: 5,000 lb XT6: 4,000 lb If you tow regularly, the MDX’s higher rating gives you more margin.
Safety & Tech
On safety & tech, the useful details are the names in the table: what each one uses, not a figure we can rank.
Full Specifications
Engine & Performance
| Spec | MDX | XT6 |
|---|---|---|
| Powertrain | Gas | Gas |
| Engine | 3.5L V6 | 2.0L turbo I4 |
| Total system output | 290 hp (winner) | 235 hp |
| Torque | 267 lb-ft | 258 lb-ft |
| Transmission | 10-speed automatic | 9-speed automatic |
| Drivetrain | FWD (SH-AWD available) | FWD (AWD available) |
Fuel Economy & Range
| Spec | MDX | XT6 |
|---|---|---|
| Fuel economy (combined)EPA estimate where available | 22 mpg | 23 mpg |
| Fuel economy (city) | 19 mpg | 21 mpg (winner) |
| Fuel economy (highway) | 26 mpg | 27 mpg |
| Fuel tank | 18.5 gal | N/A (not specified) |
Space & Practicality
| Spec | MDX | XT6 |
|---|---|---|
| Seats | 7 seats | 7 seats |
| Cargo (behind rear seats) | 16.3 cu ft (winner) | 12.6 cu ft Smallest cargo area |
| Cargo (seats folded) | 71.4 cu ft | 78.7 cu ft (winner) |
Off-road & Towing
| Spec | MDX | XT6 |
|---|---|---|
| Max towing | 5,000 lb (winner) | 4,000 lb |
| AWD / 4WD available | Yes | Yes |
Safety & Tech
| Spec | MDX | XT6 |
|---|---|---|
| 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 | XT6 |
|---|---|---|
| Length | 198.4 in | 198.8 in |
| Width (no mirrors) | 78.7 in | N/A (not specified) |
| Height | 67.9 in | N/A (not specified) |
| Wheelbase | 113.8 in | 112.7 in |
Price
| Spec | MDX | XT6 |
|---|---|---|
| Starting MSRP | $51,800 | $49,195 (winner) |
“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.
Price & Value
In launch price, the two are close: the XT6 came in $2,605 lower. The MDX costs $2,605 more, and for that you get 29% more cargo space and 55 hp more power.
These are US launch prices, recorded launch; what you pay today may be higher or lower.
Which One Should You Buy?
Choose the MDX if…
- you haul strollers, luggage or sports gear every week (16.3 cu ft vs 12.6 cu ft)
- you want more power (290 hp vs 235 hp)
- you tow a camper, boat or trailer (5,000 lb vs 4,000 lb)
Choose the XT6 if…
- you move bulky items now and then (78.7 cu ft vs 71.4 cu ft maximum cargo)
- you want better city fuel economy (21 mpg vs 19 mpg)
- you’re working to a firm budget and $2,605 matters
Also Compared
Frequently Asked Questions
Which is better for most people, the MDX or the XT6?
For most people, the MDX is the stronger choice, unless you specifically want 10% more maximum cargo space, where the XT6 has the edge.
Is the MDX bigger than the XT6?
They’re practically the same size. The difference between the MDX and the XT6 is too small to matter.
Is the MDX cheaper than the XT6?
The XT6 is the cheaper option, launching at $2,605 less than the MDX (launch prices as of launch).
Executive Summary
Here’s the short version of how I’d choose between the MDX and the XT6. The MDX earns my vote first and foremost with 29% more cargo space. On top of that, the MDX adds 55 hp more power. The XT6 has a trump card of its own in 10% more maximum cargo space.
Put simply, the MDX suits people who care about engine & performance, while the XT6 suits people who put fuel economy & range first.
My pick: the MDX, with one exception: if you’d trade the rest for 10% more maximum cargo space, go for the XT6.
Personal opinion based on the data above. Your priorities may differ.