Lexus NX vs RX: What’s The Difference?

SUVs have been the nation’s favorite car for a few years now, making it perhaps unsurprising that the NX and RX were the best-selling Lexus models last year. 

The Lexus NX, standing for ‘Nimble Crossover’ is a compact luxury crossover SUV that is designed to accommodate a small family while managing to be agile on the road. Meanwhile, the slightly more expensive RX is a mid-size luxury crossover SUV that offers extra space for passengers and cargo. 

While that outlines the fundamental difference between the two, there are other important differences that buyers should consider. Let’s take a closer look. 

Quick Comparison Table

2020 Lexus NX2020 Lexus RX
$36,720Starting Price$44,150
182.7/73.6/64.8Dimensions L/W/H (in) 192.5/74.6/67.7
2.5L I-4Base Engine 3.5L V6
235 hpHorsepower295 hp
FWD/AWDDrive WheelFWD/AWD
22/28 mpg EPA-estimated MPG20/27 mpg
5 Seating Capacity5/7
71.6Passenger Volume (cu ft)121.3
17.7/54.6 Cargo Volume (cu ft) 18.4/56.3

*Figures for non-hybrid NX 300 and RX 350

Lexus NX vs RX: Price

The 2020 base Lexus NX 300 starts at $36,720. The F sport and Luxury trims which share the mechanicals but offer extra features and additional luxury start at $38,960 and $43,810 respectively. 

By comparison, the 2020 base RX 350 starts at $44,150. An F Sport trim is also available for $47,950, as well as the 7-seater RX 350L which starts at $47,300.

These quoted prices are for the FWDs, opting for AWD will cost a further $1400. 

Hybrid Options

The NX and RX are both also available with self-charging hybrid vehicles (as opposed to plug-in hybrid) which are AWD by default and more economical to drive. 

These cost more than their petrol-only counterparts, with the NX 300h starting at $39,070 and the RX 450h starting at $46,750.

NX rear (above), RX rear (below)

Lexus NX vs RX: Size

Exterior Dimensions

The RX is a compact luxury SUV, as opposed to a the subcompact NX, meaning it has a longer wheelbase and bigger exterior dimensions all around. It measures roughly 10 inches longer in length, 3 inches wider and an inch taller.

The RX 350L offers seating for up to 7 passengers

Interior Space

The Lexus RX is bigger than the NX in size, but how does that translate into seating and cargo room?

Passengers in the back of the RX enjoy roughly 2 inches of extra leg room and shoulder/hip room. In practice, that can be the difference between knees scraping the back of the seat in front and having the freedom to wiggle about—especially for taller passengers. There’s also a little more head room for passengers in the front and back. (Note that going for the 7-seater RX significantly cuts down middle and rear row legroom).

Moving onto cargo volume, the NX gives you 17.7 cubic feet of cargo space behind the rear seats, increasing to 54.6 cubic feet when you fold the rear seats down. The RX can hold slightly more, with 18.4 cubic feet behind the rear seats and 56.3 cubic feet when the rear seats are folded. Neither car is particularly spacious within their class (stylish sloping rooflines have their drawbacks) but offer enough space for average hauling needs. 

Lexus NX vs RX: Design and Features

Exterior

The current selection of cars in the Lexus lineup can be easily recognized by their enormous spindle front grilles and bold styling. Both the NX and RX look like spaceships from the future with their razor-sharp character lines, rear-sloping roof lines and sharp head and tail lights. 

In person, the most significant difference is in the size, with the RX having more road presence. But the NX arguably has a slightly more unconventional design, with split front lighting and taillights which fork off at the sides. This gives it a slightly sportier feel, which is typical when comparing compacts to midsize SUVs across all the automakers. 

Both SUVs can be optioned with a power moonroof, but you can only get the auto-dimming side mirrors on the RX, while the premium triple-beam LED headlamps with front lighting system is an option exclusive to the NX.

2020 NX Interior (F Sport Trim shown)
2020 RX Interior

Interior

Both cars have luxurious interiors with modern styling. The NX has a slightly more streamlined and sportier interior which gives the illusion that it’s bigger than it is. The RX’s interior, on the other hand, has a very conventional luxury vehicle feel to it.

As standard, you’ll get synthetic leather upholstery, power-adjustable front seats and reclining rear seats in both cars. Lexus have put so much engineering and science into their seats that they’re currently unmatched in the luxury car market.

While the standard interiors in both SUVs are decent, many will be tempted by the optional Premium and Luxury packages which give you an even nicer interior—providing the likes of real leather upholstery and heated seats. It’s worth noting that the RX’s optional packages are more expensive, but give you even more premium features like a heated wood and leather trimmed steering wheel and ambient lighting.

Technology

You’ll find all the latest technology on either car, including the likes of Apple CarPlay, Bluetooth, Amazon Alexa,  and Enform Wi-Fi (though not necessarily as standard). Hybrid versions of NX and RX also offer EV mode, which when activated makes the car run solely off its electric motor. The idea is nice, although in practice there are some issues and engaging the throttle too hard will reignite the petrol engine. 

Being the more expensive SUV, the RX has some things that aren’t available on the NX. This includes a bigger 12.3-inch infotainment (compared to the 10.3-inch display in the NX) and an optional color heads-up display.

The NX has more iconic split headlights

Lexus NX vs RX: Mechanicals

The standard Lexus NX comes with a turbocharged 2.5-liter inline-4 engine which produces 235 horsepower. This takes the car from 0-60 mph in 7.2 seconds and achieves a maximum speed of 124 mph. The AWD version is slightly nippier (0-60 mph in 7.0 seconds) but slightly less fuel efficient (25 combined mpg vs 24 combined mpg). 

Lexus fitted the RX with a more powerful 3.0-liter V6 which produces 295 horsepower. Despite the bigger engine, it’s a little slower off the line (0-60 mph in 7.7s) because of the car’s heavier body. However, it is able to tow 3500 lbs compared to the NX’s 2000 lbs towing capacity. 

Things get more interesting when you are looking at the Hybrid versions of the NX and RX. The NX 300h is significantly less powerful than the petrol NX, and simply isn’t much fun to drive. By contrast, the hybrid RX 450h produces more horsepower than the RX 350 and is very comparable in performance, with the benefit of far superior gas mileage.

Verdict

Buyers looking to purchase a new crossover will ideally want to test drive the NX and RX before any final decision is made. The fundamental difference, size, is something that only becomes tangible when seeing and driving the car in person.

However, the RX isn’t simply a bigger version of the NX. The higher price tag also gets you a different interior design with more luxurious standard features and some features which are unavailable on any NX trim altogether (e.g. larger infotainment, auto dimming side mirrors and a heated leather and wood steering wheel).

And there’s an extra caveat when considering the hybrid models. The hybrid RX 450h performs just as well as the petrol RX 350h, whereas the NX  300h hybrid is rather sluggish compared to the standard NX 300. If you’re dead set on a hybrid, the RX is definitely a better overall buy. 

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