2026 Lexus RX Vs. Rivals: Is It Compact or Midsize?

Setting the Scene

The Lexus RX, due for an update in 2027, is the latest instalment in a story that started in 1998 with the original XU10 RX. Sold in the U.S. starting with the 1999 model year, it had a 220-hp naturally aspirated 3.0-liter V6, a 4-speed automatic, and either FWD or AWD. The XU10 was a midsize SUV at the time, at 180.3 inches long; the 1st-generation 2000 E53 BMW X5 was just 3.4 inches longer. Both of these so-called midsizers are now smaller than the “compact” 2026 BMW X3, which is more than 187 inches long.

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Cars have been getting bigger; consider for a moment that the Honda Accord, a midsize car, is 195.7 inches long – about the same as an E38 BMW 7 Series full-size sedan from less than 30 years ago. The RX has also grown over the years, and the current 5th-generation model is 192.5 inches long, or 12.2 inches longer than the original. Still, the Lexus RX’s competitors have grown even more, and that number now puts it smack-bang between the compact and midsize segments, so the RX has slipped back by half a size class. So which cars are similar to the Lexus RX 350 and hybrid trims in size?

Exterior Size Comparison

This is how the 2026 RX compares to other premium SUVs from the two size classes:

As you can see, the RX is a true in-betweener: smaller than a midsize SUV and bigger than a compact. It is, therefore, a true segment straddler.

Interior Size Comparison

It stands to reason, given the above, that interior space will follow a similar pattern, but does it? Let’s compare:

The RX’s advantage over compact SUVs mostly holds, but it’s not a clear victory. The RX’s headroom is less than most because of its sleeker profile, but it’s adequate even for above-average adults up to the 450h+ Premium trim; the lowest headroom values shown above are for the 500h F Sport Performance trim with its panoramic glass roof.

The rest of the values mostly place the RX above the compact class, with notably good legroom and rear shoulder room, but some compacts run it close, and the surprisingly roomy Lincoln Corsair beats it for rear legroom. So the RX does offer a fairly spacious cabin, but there isn’t enough in it to really notice when compared to most compacts, and the lower roofline reduces the sensation of space.

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Price Comparison

The 2027 RX starts in line with the compacts on price, with only the Lincoln Corsair being notably cheaper. This makes it a high-value proposition, given the near-midsize footprint.

Driving Comparison

The RX starts with a 275-hp gas 4-cylinder RX 350 or a 246-hp RX 350h hybrid, which both reach 60 mph in around 7.5 seconds. This is adequate but hardly exciting, though the 350h hybrid we tested achieved an excellent 34 mpg combined – just 1 mpg below its EPA claim. Some RX 350 competitors, like the base X3 xDrive30, do a far quicker 6.0 seconds, but it’s not a hybrid and gets 29 mpg combined, while the base Mercedes GLC posts similar performance figures.

So, for the bottom-of-the-range Lexus RX 350, comparable cars from rivals outgun it on performance, and most do on handling dynamics as well. The RX is more aimed at comfortable, serene transport than corner carving or straight-line performance, and this is underlined by its comfortable ride, top-class cabin, and Lexus-typical build quality. The top 450h+ (304 hp), which we tested, and 500h F Sport Performance (366 hp) add extra performance if you need it, but you have to stretch to the high-$60K bracket to access them.

Is the RX’s In-Between Positioning Pointless or Genius?

The RX has a dedicated following, and it sold more than 113,000 units in the U.S. in 2025, beating the X3 (76,546) and GLC (66,791), and selling around four times more than the Genesis GV70 or Acura RDX. This goes to show that, despite the bald numbers suggesting the RX has no clear advantage in the market, people vote with their wallets and seem to love the SUV’s blend of luxury, quality, resale value, reliability, and roominess. The genuinely attractive styling must surely also play a role, even if this metric is subjective.

The RX also has a more upmarket air than most compacts, and its focus on comfort, quietness, luxury, and superb (hybrid) efficiency demonstrates that most people want these qualities from an SUV used for the daily grind. The fact that you pay affordable compact-class prices for the quietly understated RX is the cherry on top. We get why it’s still a runaway success for Lexus, all these years later. It may just be a smarter buy for anyone used to the typical compact luxury SUV.

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This story was originally published September 13, 2026 at 8:00 AM.