Is the Acura MDX bigger than the Lexus RX 350?
Yes. The Acura MDX is larger overall than the Lexus RX 350, especially in exterior size and seating capacity, because the MDX is designed as a three-row SUV while the RX 350 is primarily a two-row crossover (with the RX L offering a third row but remaining more compact).
In model-year terms, the MDX generally sits on a longer footprint with a wider body and a longer wheelbase, which translates into more interior volume and the option of seven-seat capacity. The RX 350 is shorter and narrower, prioritizing a more compact, city-friendly profile and easier handling in urban environments. The comparison below covers exterior size, interior space, and practicality to help distinguish the two.
Exterior dimensions
The following figures summarize how the two SUVs compare on their outside footprints.
- Acura MDX (current generations): roughly 196–199 inches in length; wheelbase about 111 inches; width around 78.4–78.7 inches.
- Lexus RX 350 (current generations): roughly 192–193 inches in length; wheelbase about 109–110 inches; width around 74.5–75.0 inches.
Conclusion: The MDX is longer and wider than the RX 350, which contributes to a larger overall presence and more interior space, especially when configured for three rows.
Interior space and seating
This section compares how the two vehicles accommodate passengers and how that affects everyday usability.
- Seating capacity: MDX seats up to seven people with a three-row setup; RX 350 is typically five seats (two rows), with the RX L offering a optional seven-seat layout but tighter back-row space.
- Third-row practicality: MDX provides a more comfortable and usable third row for older children and shorter trips; RX L’s third row is more cramped and often best for occasional use.
- Headroom and legroom: The MDX generally offers more interior room across the cabin, particularly in the second and third rows, due to its larger footprint.
RX L availability and trade-offs
The RX L extends seating to seven with a third row, but its overall interior width and third-row usability are narrower compared with the MDX. Buyers prioritizing full-time seven-passenger seating may still prefer the MDX for daily comfort, while those valuing a more compact vehicle with occasional extra seating might opt for the RX L.
Conclusion: In terms of interior space and seating flexibility, the MDX typically leads for families needing a true three-row layout, while the RX 350 series remains better suited for five-passenger use with more compact dimensions.
Cargo and practicality
These points summarize cargo capability and day-to-day practicality beyond seating alone.
- Cargo behind the third row: MDX generally offers more usable cargo space behind the third row than the RX L and far more than the RX 350 with two rows.
- With second-row seats folded: MDX provides a larger overall cargo capacity, thanks to its bigger footprint; the RX L increases cargo space compared with RX 350 but remains smaller than the MDX in three-row configurations.
- Urban practicality: The MDX’s larger size can be a trade-off in tight parking or narrow aisles, whereas the RX 350’s smaller footprint makes city driving and parking easier.
Conclusion: For buyers who need maximum cargo versatility and three-row capability, the MDX is the stronger choice. If you prioritize a smaller, easier-to-park SUV with occasional additional seating (RX L), the RX line offers a more compact option with some extra seating when needed.
Summary
Overall, the Acura MDX is bigger than the Lexus RX 350 in exterior dimensions, interior volume, and seating capacity, largely because it is built as a three-row family SUV. The RX 350, and even the RX L, trades some size for a more compact footprint and city-friendly maneuverability. The right pick depends on your priorities: true seven-passenger capacity and more interior space (MDX) versus a smaller, easier-to-drive crossover with optional extra seating (RX L) or a solid five-seat layout (RX 350).
