What Is the Biggest Lexus SUV? Full-Size Guide And Comparison

2026 Lexus RX 350 Premium in Copper Crest, TX 350 AWD in Wind Chill Pearl, and LX 600 Premium in Atomic Silver on a sunlit desert plain.

Are you wondering what the largest Lexus SUV you can acquire for your growing family's vacations is? The Lexus TX holds the title for 2026, offering up to 97 cubic feet of cargo space and over 33 inches of third-row legroom. While the spacious TX is the biggest sport-ute in the automaker's stable, there are plenty of comfortable midsize and full-size family haulers you can select from. Join the DARCARS Lexus of Mt. Kisco team as we compare the TX with some of its siblings. Whether you're our neighbor here in Mt. Kisco or not, we're happy to help you find your next two- or three-row Lexus vehicle.

The Largest Lexus Vehicle at a Glance

  • If you want the largest Lexus SUV, the TX offers a length of up to 203.5 inches on a 116.1-inch wheelbase and 97 cubic feet of maximum cargo space.
  • The brand's other full-size SUV, the Lexus LX, isn't far behind in many dimensions and has versatile cabin layouts, ranging from four to seven seats.
  • For midsize comfort, the Lexus GX has surprising cargo space and legroom that can surpass even the LX. Three rows come standard, but rugged Overtrail editions have two-row seating for five.
  • Finally, the midsize, two-row RX is perfect for commuters and small families, thanks to its nimble exterior yet inviting interior with 41.1 inches and 37.4 inches of front and rear legroom, respectively.

Large Lexus SUV Models: Midsize & Full-Size Chart Comparison

Lexus RX Lexus GX Lexus LX Lexus TX
Classification Midsize SUV Midsize SUV Full-size SUV Full-size SUV
Seating Capacity 5 5 - 7 4 - 7 6 - 7
Length 192.5 in 197.1 in 200.5 in 203.1 - 203.5 in
Width 75.6 in 83.2 in 78.3 in 78.3 in
Height 67.3 in 75.4 - 77.2 in 74.2 - 74.6 in 70.1 in
Wheelbase 112.2 in 112.2 in 112.2 in 116.1 in
Cargo Volume (Min. / Max.) 29.6 / 46.2 cu ft 10.3 / 90.5 cu ft 7.2 / 64 cu ft 20.2 / 97 cu ft
Standard Headroom (1st / 2nd / 3rd Row) 39.5 / 38.6 / - in 39.4 / 43.2 / 35.5 in 37.8 / 38.9 / 35.2 in 40 / 38.5 / 37.2 in
Standard Legroom (1st / 2nd / 3rd Row) 41.1 / 37.4 / - in 41.2 / 36.7 / 31.9 in 41.1 / 36.6 / 31.1 in 41.6 / 39.5 / 33.5 in
Standard Shoulder Room (1st / 2nd / 3rd Row) 58.1 / 56.5 / - in 59.5 / 57.2 / 57.8 in 61.4 / 58.8 / 56.1 in 60 / 59 / 57.4 in
Standard Hip Room (1st / 2nd / 3rd Row) 56.7 / 56 / - in 56.5 / 56.4 / 45.3 in 59.6 / 58.8 / 49 in 56.5 / 56.8 / 45.7 in
Max. Curb Weight 4,810 lb 5,710 lbs 5,945 lbs 5,400 lbs

What Is the Biggest Lexus SUV?

If you want a big-body Lexus SUV, you'll have a choice of two full-size models for 2026. Learn more about these big Lexus SUV options below.

Lexus TX

As we mentioned above, the TX is the largest Lexus SUV currently. It boasts comfortable passenger space and versatile cargo solutions – reaching up to 97 cubic feet with the rear seats folded down. It seats seven by default, though some trims, such as the 350 F SPORT Handling and 500h F SPORT Performance Premium, come with a six-seat configuration via a set of second-row captain's chairs; some earlier editions in the lineup can be equipped with captain's chairs through an optional package.

The TX, as you might expect from the biggest Lexus SUV, has the most legroom across all three rows, with 41.6 inches in the front, 39.5 inches in the second row, and 33.5 inches in the rear. If only the largest model will do for your family and you happen to be in our area, consider our Lexus lease and finance deals to upgrade to a TX.

  • Trims: 10 (including the 550h+ Luxury PHEV, which the Lexus brand recently ceased production on)
  • Seating: 6-7
  • Performance Type: Gas, hybrid, or plug-in hybrid
  • Best For: Large, busy families
2026 Lexus TX 500h F SPORT Performance Luxury in Caviar, shown from an elevated front three-quarter view.
2026 Lexus LX 600 F SPORT Handling in Ultra White, front three-quarter view on a mountain road at dusk.

Lexus LX

The other full-size Lexus SUV, the LX, is the second-largest option at 200.5 inches long. The cabin is still plenty accommodating for your crew and gear, with 36.6 inches of second-row legroom and 31.1 inches in the back. It rides on a slightly smaller 112.2-inch wheelbase, giving you more maneuverability than the TX. In addition, the Lexus LX has more dynamic trim options, from the four-seat Ultra Luxury iteration to the rugged two- or three-row Overtrail variants.

  • Trim Levels: 7
  • Seating: 4-7
  • Performance Type: Gas or hybrid
  • Best For: Rugged or supremely luxurious adventures

What's in the Lexus Midsize SUV Lineup?

Our new Lexus SUVs for sale in Mt. Kisco also include several midsize setups that ride on the same 112.2-inch wheelbase as the LX but fall just under 200 inches in length.

Lexus GX

Though a midsize model, the Lexus GX is just as commanding as either full-size Lexus SUV, thanks to its wider, taller stance and boxy design. At just under 200 inches long, 83.2 inches wide, and up to 77.2 inches tall, many versions have a cabin comparable to the TX. For example, the two-row Overtrail and Overtrail+ trims offer up to 90.5 cubic feet of storage room. Plus, three-row versions have more third-row legroom than the full-size LX, coming in at 31.9 inches. This body-on-frame SUV is ready to conquer your wildest family excursions.

  • Trim Levels: 6
  • Seating: 5-7
  • Performance Type: Gas
  • Best For: Adventurous families who travel off the beaten path
2026 Lexus GX 550 Luxury+ in Eminent White Pearl, front three-quarter view parked in a modern courtyard.
2026 Lexus RX 350 Premium in Copper Crest, front three-quarter view on a misty forest road.

Lexus RX

The final SUV in our review is the midsize Lexus RX, one of the automaker's most popular sport-utes. This model is designed to be versatile and easy to drive, with a focus on maneuverability and comfort for five. Enjoy over 41 inches of legroom in the front row and 37.4 inches in the back. While the RX has the least cargo room of the bunch, you'll still have plenty of space for small furniture on moving day or road-trip gear for your vacations, thanks to its 46.2 cubic feet behind the front row.

  • Trim Levels: 19
  • Seating: 5
  • Performance Type: Gas, hybrid, or plug-in hybrid
  • Best For: Small families and commuters

What Is the Heaviest SUV Made by the Lexus Brand?

Believe it or not, while the TX is your go-to for a "Lexus big SUV," it isn't the heaviest model of the bunch. Even its 5,400-pound plug-in hybrid variant, which the brand recently stopped producing, is lighter than the heaviest GX and LX iterations. The Lexus LX is the heaviest model in the lineup, reaching up to 5,945 pounds with trims like the 700h Luxury and 700h Ultra Luxury. Meanwhile, the GX tops out at 5,710 pounds.

Take Home the Biggest Lexus Car From DARCARS Lexus of Mt. Kisco

While the TX is undoubtedly the largest Lexus SUV in Mt. Kisco, that doesn't mean it's necessarily the best choice for you and your family. We recommend you research Lexus models with us to find the perfect fit for you and yours.

Once you decide on which midsize or full-size SUV to take home, our team at DARCARS Lexus of Mt. Kisco would be happy to help you finance or lease it if you happen to be in our area. Contact us for more information on our ongoing specials and trade-in opportunities to see if we can help you get an even more competitive rate.

Frequently Asked Questions

Which is bigger: the Lexus GX or the Lexus LX?

The LX is slightly longer, but the wider, taller GX has more interior space for families in many ways, including headroom and legroom in every row, as well as maximum storage space behind the first row.

How many people can the Lexus TX seat?

The Lexus TX can seat six or seven depending on the configuration.

Which Lexus SUV has the most cargo space?

The TX has the most cargo space at up to 97 cubic feet, though the GX is close behind with a maximum capacity of 90.5 cubic feet.