Is the Lexus NX the same size as the BMW X3?

No — the BMW X3 is typically a touch larger than the Lexus NX, though both sit in the compact luxury SUV class and offer similar footprints for daily driving and urban parking.

What follows is a detailed look at how the two models compare in exterior size, interior space, and cargo capacity based on the latest 2024–2025 specifications. The figures can vary slightly by trim and option packages, but the general picture is clear: the X3 is usually the bigger vehicle overall, while the NX presents a more compact, city-friendly alternative with strong interior comfort for its size.

Exterior dimensions: one is clearly a touch longer and taller

Exterior measurements give a quick, tangible sense of footprint and maneuverability. The following figures summarize the typical dimensions for each model in the current generation. All numbers are approximate and can vary by model year and trim.

• Lexus NX (2024–2025)
  
  
  
  • Length: about 183 inches (4,650 mm)
  
  
  • Wheelbase: about 106.3 inches (2,700 mm)
  
  
  • Width: about 74 inches (1,875–1,895 mm)
  
  
  • Height: about 64.8 inches (1,645 mm)
  
  
  
  


• BMW X3 (2024–2025)
  
  
  
  • Length: about 186 inches (4,720–4,740 mm)
  
  
  • Wheelbase: about 112 inches (2,835 mm)
  
  
  • Width: about 74–75 inches (1,890–1,900 mm)
  
  
  • Height: about 66 inches (1,676 mm)
  
  
  
  

Overall, the X3 is noticeably longer and taller, thanks in large part to its longer wheelbase and taller stance. The NX remains compact enough for easy city driving while still offering a near-luxury interior experience.

Practical takeaways from exterior sizing

The extra length and wheelbase of the X3 translate to more interior stretch and a larger overall profile on the road. The NX, by contrast, will feel tighter in tight urban spaces but is typically easier to park and maneuver in crowded streets and garages.

Interior space and cargo: how the footprint translates to room

Interior space and cargo capacity are the practical measures most buyers notice day to day. The two models balance cabin comfort and usable cargo differently, reflecting their exterior sizes and packaging strategies.

• Lexus NX (2024–2025)
  
  
  
  • Passenger space: comfortable front seating; rear headroom and legroom are adequate but slightly more constrained than the X3 due to the NX’s overall compact footprint
  
  
  • Cargo behind rear seats: about 16.7 cubic feet (475–480 liters)
  
  
  • Maximum cargo with rear seats folded: about 53.7 cubic feet (1,520 liters)
  
  
  
  


• BMW X3 (2024–2025)
  
  
  
  • Passenger space: typically more generous rear legroom and wider interior, benefiting from the longer wheelbase
  
  
  • Cargo behind rear seats: about 28.7 cubic feet (812 liters)
  
  
  • Maximum cargo with rear seats folded: about 62.7 cubic feet (1,777 liters)
  
  
  
  

In practical terms, the X3 often delivers more cargo space and a bit more rear-seat room, which can matter for families or frequent luggage transfers. The NX remains competitive in its class with snug-footprint efficiency and a well-shaped cargo area for its size.

What this means for buyers

If you prioritize cargo and rear-seat space, the X3 generally has the edge. If you want a smaller overall footprint for easier parking and city maneuvering, the NX is the stronger choice. Both offer premium interiors, strong driving dynamics, and a wealth of comfort and technology features; size is just one part of the overall package to weigh alongside powertrain options, ride quality, and feature content.

Summary: the short take and the longer view

Summary: The BMW X3 is not exactly the same size as the Lexus NX; the X3 is typically longer, taller, and has a longer wheelbase, resulting in more interior space and greater cargo capacity. The NX is smaller overall, with a more city-friendly footprint and sufficient interior room for daily use. For buyers, the decision often comes down to whether you value maximum cargo/room (X3) or easier urban maneuverability and a tighter footprint (NX).

What is a Lexus NX comparable to?

Alternatives to the Lexus NX include luxury rivals like the Audi Q5, BMW X3, and Acura RDX, and more budget-friendly options such as the Mazda CX-50 and Honda CR-V. The best choice depends on your priorities, whether it's premium features, performance, or affordability.
 
This video compares the Lexus NX and Audi Q5: 59sRealistickYouTube · Feb 2, 2024
Luxury alternatives

• Audi Q5: A strong competitor known for its sophisticated and conservative design. 
• BMW X3: Offers a luxurious interior and powerful engine options. 
• Acura RDX: Often praised for its sporty feel, strong performance, and ample cargo and passenger space. 
• Mercedes-Benz GLC: A direct competitor in the compact luxury SUV segment. 
• Genesis GV70: A stylish and well-regarded luxury crossover. 
• Volvo XC40: Features a charming design and a good lineup of powertrains, including a powerful EV version. 

Value-oriented and non-luxury alternatives

• Mazda CX-50: A more affordable alternative that offers comparable amenities and a comfortable ride. 
• Toyota RAV4: The Lexus NX is built on a similar platform to the RAV4 and uses many of the same hybrid components, making it a very close, more budget-friendly option. 
• Honda CR-V: A practical and spacious alternative, offering more passenger and cargo room than the NX. 
• Buick Envision: A reliable and well-equipped option that scores highly in reliability ratings. 
• Infiniti QX50: A contender with clean lines and reasonable pricing, though it may be less engaging to drive than some rivals. 

You can watch this video to learn about the differences between the Toyota RAV4 and Lexus NX: 54sCarLandTVYouTube · Nov 8, 2025

What Lexus is similar to the BMW X3?

The direct Lexus equivalents to the BMW X3 are the Lexus NX and the larger Lexus RX. The Lexus NX is the closest in size and aims for a similar sporty feel, while the Lexus RX is larger and focuses more on comfort and a serene ride. 
You can watch this video to learn about the differences between the Lexus NX and BMW X3: 1mAutoMobiYouTube · Aug 15, 2024
Lexus NX

• Best for: A more direct competitor to the X3's smaller size and agile handling. 
• Comparison: The NX is often seen as the most direct competitor due to its size and performance focus. 

Lexus RX

• Best for: Drivers who prioritize interior space and a softer, more comfortable ride over sporty performance. 
• Comparison: The RX is larger than the X3, but it's a better option if you need more room for passengers and cargo. 

You can watch this video to learn about the differences between the Lexus RX and BMW X3: 57sCarsFXYouTube · Mar 21, 2025

Is the BMW X3 smaller than the Lexus RX 350?

The BMW X3 is about the same width as the Lexus RX 350. The BMW X3 is slightly shorter than the Lexus RX 350, which may make it easier to park. The BMW X3 has a significantly smaller turning radius than the Lexus RX 350, allowing you to much more easily maneuver in and out of tight spots.

What Mercedes is the same size as the BMW X3?

The Mercedes-Benz GLC 300 and the BMW X3 are similarly-sized vehicles. The Mercedes-Benz GLC is 185.7 inches from front to rear, while the BMW X3 measures up at 185.9 inches. The Mercedes-Benz GLC has a wheelbase of 113.1 inches, while the BMW X3 offers 112.8 between the wheels.