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How fast is a Lexus RX450h?

The Lexus RX450h is a hybrid SUV that offers a compelling combination of performance and efficiency. While it may not be the fastest SUV on the market, it still delivers impressive acceleration and top speed for a vehicle of its size and class.


Top Speed and Acceleration of the Lexus RX450h


The Lexus RX450h is powered by a 3.5-liter V6 engine paired with an electric motor, producing a combined output of 308 horsepower. According to Lexus, the RX450h can accelerate from 0 to 60 mph in 7.7 seconds. This is a respectable time for a midsize luxury hybrid SUV, though not as quick as some of the more performance-oriented models in the segment.


The top speed of the Lexus RX450h is limited to 112 mph. This is a common limitation for many hybrid and electric vehicles, as the focus is more on efficiency and emissions rather than outright speed. However, the RX450h's top speed should be more than sufficient for most driving situations, including highway cruising.


Factors Affecting the RX450h's Performance


The Lexus RX450h's performance is influenced by several factors, including its hybrid powertrain, weight, and aerodynamics. As a hybrid, the RX450h benefits from the instant torque provided by the electric motor, which helps with acceleration. However, the added weight of the battery pack and electric components can somewhat offset this advantage.


Additionally, the RX450h's design prioritizes comfort and utility over pure performance, with a focus on a smooth, quiet ride and ample cargo space. This means the vehicle's aerodynamics are not optimized for high-speed driving, further limiting its top-end performance.


Balancing Performance and Efficiency



  • Fuel Economy: The Lexus RX450h is designed to deliver excellent fuel efficiency, with an EPA-estimated 31 mpg in the city and 28 mpg on the highway.

  • Emissions: As a hybrid, the RX450h produces lower emissions compared to its non-hybrid counterparts, making it a more environmentally friendly choice.

  • Driving Modes: The RX450h offers different driving modes, allowing the driver to prioritize either performance or efficiency, depending on their needs and preferences.


While the Lexus RX450h may not be the fastest SUV on the market, it strikes a compelling balance between performance, efficiency, and practicality. Its hybrid powertrain and well-rounded capabilities make it a popular choice for those seeking a luxurious and eco-friendly midsize SUV.

What is the 0 60 time for the Lexus RX 450h+?


2024 Lexus RX Acceleration Test
RX 350 (AWD): Enhancing its performance, the all-wheel-drive variant cuts the 0 to 60 to 7.2 seconds. RX 450h+ Hybrid: Standing out in the Lexus RX acceleration test, this hybrid marvel achieves an estimated 0 to 60 time of just 6.2 seconds, making it a favorite in Brownsville.



Which year Lexus RX 450h is the best?


The Best Model Years to Buy a Lexus RX 450h
The 2022 Lexus RX 450h is our top pick for the best model year value for the RX 450h. With the 2022, you would only pay, on average, 71% of the price as new, with 83% of the vehicle's useful life remaining.



Is there any problem with the Lexus RX 450h?


RX 450h models are fairly heavy and often develop suspension problems. Some owners report leaks in the system, while others report the compressor wears out quickly and has to be replaced.



What is the best year for RX450h?


The 2022 Lexus RX 450h is our top pick for the best model year value for the RX 450h. With the 2022, you would only pay, on average, 71% of the price as new, with 83% of the vehicle's useful life remaining. The 2021 and 2020 model years are also attractive years for the RX 450h, and provide a relatively good value.



How fast is a Lexus RX 450h?


0-62mphTop speedDriven wheels
7.7s124mphFour



What happens if you accidentally put 87 instead of 91 in a Lexus?


Use of unleaded gasoline with an octane rating lower than what is listed for your model year vehicle could potentially result in engine knocking. If the octane rating used is less than required, damage to the engine may occur and which could void the vehicle warranty.



What is the fastest Lexus SUV?


And probably one of the fastest. SUVs you can ever find because if you even look at the RX 500H gets 0 to 60 in 5.5 seconds so to 100 is probably a little bit more. But this one is 5.2.



How long does Lexus RX 450h hybrid battery last?


2021 Lexus RX 450h batteries frequently last between 3-5 years, but this is variable depending on the type of battery, weather conditions, driving habits, and more. You can prolong the life of your RX 450h battery by: Keeping your vehicle stored indoors away from extreme swings in temperature or climate.



Does RX 450h require premium gas?


You can put premium gas in your Lexus RX, and it can provide better performance, but it's not a requirement. Any gas that's put in your Lexus RX shouldn't be higher than 15% ethanol. If gasoline at the pump has more than 15% ethanol, or it's labeled as a flex-fuel, it shouldn't be used in your RX.



What is the best year to buy a Lexus 450h?


The 2022 Lexus RX 450h is our top pick for the best model year value for the RX 450h. With the 2022, you would only pay, on average, 71% of the price as new, with 83% of the vehicle's useful life remaining.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.