The short answer
Based on available data, the Lexus RX comes out ahead of the Infiniti QX55 on power. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Overall
Mixed to negative sentiment overall. The vehicle is acknowledged for its attractive, sporty coupe-SUV styling, which several owners find to be a standout feature. It is also noted for being comfortable for shorter drivers, offering good seat adjustment and a wide view.
Best version to buy
Insufficient owner data available. One owner mentions having an "Essential" trim with ProPilot upgrades and appreciating features like a head-up display, while a loaner "Sensory" trim was noted to have fewer toys.
Known issues
Overall
Overwhelmingly positive sentiment centered on exceptional long-term reliability, comfort, and low ownership costs. The RX is consistently described as a "bombproof," comfortable, and quiet vehicle built to last well over 150,000 miles with minimal issues. Owners report high satisfaction with its role as a refined, practical daily driver and family vehicle.
Best version to buy
For the 2016-2022 generation, models equipped with the naturally aspirated V6 engine (RX 350) are highly recommended for their proven, bulletproof reliability. For the 2023+ generation, the plug-in hybrid RX 450h+ receives strong praise for its combination of smooth EV driving, ample power (0-60 in 5.8 seconds per owner-cited review), and efficiency, though its high cost is noted.
Known issues
The verdict
The Lexus RX is the better choice for most buyers.
It has stronger reliability sentiment in owner reports than the Infiniti QX55, based on the data above. If the specific known issues on the Lexus RX are a dealbreaker, the Infiniti QX55 is worth a closer look instead.
Other comparisons
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Which is more reliable, the Infiniti QX55 or the Lexus RX?
Owner reports lean more positive on reliability for the Lexus RX than the Infiniti QX55. See the known issues comparison above for the specific concerns owners report on each.
Which is better for families, the Infiniti QX55 or the Lexus RX?
Data on family-specific factors like cargo space is limited for one or both models, but based on available reports, both are positioned as practical daily drivers. Check the specs table above for seating and body type.
Which has better fuel economy, the Infiniti QX55 or the Lexus RX?
Fuel consumption data is limited for one or both models. Check the specs table above for the figures available on each catalogued version.
Which is cheaper to maintain, the Infiniti QX55 or the Lexus RX?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Lexus RX than the Infiniti QX55. See the known issues comparison above.