Cadillac XT5 vs. XT6: Which Midsize SUV Fits Your Family?

Choose the Cadillac XT5 if you drive a family of up to five and want the lower price and better fuel economy. Choose the XT6 if you need a third row or the most cargo space. The XT6 is about 9 inches longer, adds seats for up to seven and holds 43.1 cubic feet behind its second row against 30.0 in the XT5. 

Both SUVs share the same wheelbase, within an inch, and the same engine choices, so the real decision is space. Below we compare dimensions, passenger room and cargo, then match each to the kind of family that will enjoy it most. 

Dimensions, seating and cargo space 

How big is each SUV? 

The XT6 is bigger in every direction. It is 8.9 inches longer, 2.4 inches wider and 3.8 inches taller. Even so, the wheelbase differs by less than an inch, which is why the two feel similar to drive. Most of the XT6’s extra length sits behind the second row, where it fits a third row and extra cargo room. 

Passenger room and seating 

Up front and in the second row, the two are close. Second-row legroom is essentially equal, at 39.0 inches in the XT5 and 39.1 in the XT6. The XT6 adds a third row with 29.5 inches of legroom, which suits children and short trips better than adults on long drives. Older data from GM Authority also shows more second-row headroom in the XT6, about 39 inches against 36 in the XT5, a real difference for tall passengers. 

Cargo space 

With all seats in use, the XT5 gives you 30.0 cubic feet of cargo space. The XT6 gives you 43.1 cubic feet with the third row folded, and 12.6 cubic feet behind the third row when all seven seats are occupied, enough for a few backpacks or a small stroller. Fold everything down and the XT6 reaches 78.7 cubic feet against 63.0 in the XT5. 

Performance, features and pricing 

Performance 

The two SUVs drive alike. Each offers a 2.0-liter turbocharged four-cylinder and an optional 3.6-liter V6 making 310 horsepower. The XT5 is lighter and slightly more efficient, rated 24 mpg combined against 23 for the XT6. If you want the strongest acceleration and more towing, choose the V6 in either. 

Towing 

Both are comfortable commuters rather than serious tow vehicles. The XT5 is rated for 1,000 pounds with the four-cylinder, and 3,500 pounds with the V6 and the Smart Towing Package. The XT6 tops out at 4,000 pounds on the ratings we found, which covers a small camper or a pair of jet skis. Check the exact rating for any vehicle you consider. 

Technology and features 

The two share a luxury interior that includes semi-aniline leather seating, ventilated front seats and a 14-speaker Bose sound system on the models Lafayette Cadillac lists. The biggest tech difference is Super Cruise: it is available on the XT6 Premium Luxury and Sport, but not on the XT5. The XT6 also offers a Surround Vision Recorder that the XT5 does not. 

Price 

The XT5 is the lower-priced option. The 2026 XT5 starts at $46,595 with destination for a front-wheel-drive Luxury, and the Technology Package is now standard on Premium Luxury and Sport. On 2025 pricing, KBB shows the XT6 starting about $4,800 above the XT5 at MSRP. Ask us about current incentives, lease offers and certified pre-owned prices on both. 

Which SUV fits your family? 

Choose the XT5 if your family has up to five people 

The XT5 is the right fit for couples, small families and anyone who carries kids plus a stroller, not a crowd. It costs less, gets slightly better fuel economy and is shorter, which helps in tight garages and parking lots. With 30.0 cubic feet behind the second row, it handles the weekly grocery run and most road-trip luggage for four. 

Choose the XT6 if you need a third row 

If you carpool, have three or more children, or host grandparents on weekend outings, the XT6’s third row is the deciding feature. The 29.5 inches of third-row legroom suit kids and teens best. It also offers the larger cargo area and optional Super Cruise hands-free driving on higher trims, which many families value on highway trips. 

Quick decision guide 

Shopping now? Know what is available 

Because the XT6 is out of production and the XT5 is in its final year, supply is limited and will shrink. Certified pre-owned examples of both are a smart way to get a lot of Cadillac for the money. If you want a three-row SUV that is brand new, the all-electric VISTIQ is the model Cadillac positions as the XT6’s replacement. Our team can compare all three for you. 

Cadillac XT5 vs. XT6 FAQ 

What are the main differences between the Cadillac XT5 and XT6? 

The XT6 is about 9 inches longer, offers a third row for up to seven passengers and has more cargo space. The XT5 seats five, costs less and is slightly more fuel efficient. 

Does the Cadillac XT5 have a third row? 

No. The XT5 is a two-row, five-seat SUV. The XT6 is the one with a third row. 

How do the XT5 and XT6 compare in cargo space? 

The XT5 offers 30.0 cubic feet behind the second row and 63.0 with the rear seats folded. The XT6 offers 43.1 and 78.7 cubic feet, plus 12.6 behind its third row. 

What are the dimensions of the XT5 and XT6? 

The XT5 is 189.6 inches long, 74.9 wide and 66.1 tall. The XT6 is 198.5 inches long, 77.3 wide and 69.9 tall. 

Is the Cadillac XT6 still available? 

Cadillac ended XT6 production at the end of 2025, so it is available only from remaining new inventory and as a pre-owned vehicle. The XT5 is expected to end production after 2026. 

Which Cadillac is best for a growing family? 

If you need more than five seats, the XT6 is the better fit. For up to five, the XT5 saves money and parks easier. For a new three-row Cadillac, consider the all-electric VISTIQ. 

See them in person at Patrick Cadillac 

The best way to decide is to sit in both rows. Contact Patrick Cadillac in Schaumburg to check new and certified pre-owned inventory and schedule a test drive. 

See Your Cadillac SUV Options at Patrick Cadillac

Still deciding between the Cadillac XT5 and XT6? Visit Patrick Cadillac in Schaumburg to explore available vehicles, compare interior space and features, and find the right SUV for your family. Browse our new Cadillac XT5 inventory, explore our certified pre-owned Cadillac inventory, or discover the all-electric Cadillac VISTIQ if you are looking for a new three-row SUV.

Our team can help you review available options and arrange a test drive. Visit Patrick Cadillac at 526 Mall Drive, Schaumburg, IL 60173, or call (708) 469-6843 to learn more.