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What is the fastest Lexus IS500?

The fastest Lexus IS500 is the IS 500 F SPORT Performance, the high‑output variant powered by a 5.0-liter V8 that makes 472 horsepower. It accelerates to 60 mph in about 4.4 seconds and is electronically limited to a top speed of 168 mph, depending on tires and equipment.


In this article, we examine what makes the IS 500 the pace leader in Lexus’s IS lineup, what you get with the F SPORT Performance package, and how it stacks up against rivals in the performance sedan space. We’ll also explain why this version stands out as the apex of speed within the IS family.


Performance at a glance


Key numbers that define the IS 500’s pace are listed below.



  • Engine: 5.0-liter V8 (2UR-GSE) producing 472 horsepower

  • Torque: 395 lb-ft

  • Transmission: 8-speed automatic with paddle shifters

  • Drivetrain: Rear-wheel drive (RWD)

  • 0-60 mph: about 4.4 seconds

  • Top speed: 168 mph (electronically limited)


In practice, acceleration depends on tire choice, surface conditions, and launch technique, while top speed is limited by electronics and the car’s overall setup.


Engineering that drives the speed


Beyond the headline horsepower, several design choices give the IS 500 its performance edge.



  • High-revving 5.0-liter V8 with a broad powerband

  • 8-speed automatic transmission with manual shift mode and paddle shifters

  • Rear-wheel drive layout with electronic controls tailored for sporty handling

  • Limited-slip differential to optimize traction through corners

  • F SPORT suspension tuning, with adaptive dampers and drive-mode selection


These engineering decisions balance raw speed with daily usability, delivering a car that roars on a track yet remains refined for everyday driving.


The IS 500 within the Lexus lineup


The IS 500 represents the peak of speed in the current IS family. While the IS 350 and IS 300 offer strong performance with V6 or four‑cylinder powertrains, they cannot match the V8’s output and acceleration. There is no all‑wheel‑drive option for the IS 500 in most markets, and the model’s appeal lies in its pure, high‑revving V8 character and rear‑drive balance that suits enthusiasts who prioritize straight‑line speed and responsive cornering.


Rivals and context


In the high-performance sedan segment, the IS 500 competes with offerings from BMW, Audi, and Mercedes‑AMG. The Lexus differentiates itself with a distinctive V8 voice, refined interior, and Lexus build quality, trading some raw ultimate track capability for everyday usability, a quieter cabin, and a unique brand proposition.


Summary


The fastest Lexus IS500 is the IS 500 F SPORT Performance, powered by a 472‑hp 5.0‑liter V8, delivering roughly 4.4 seconds to 60 mph and a restricted top speed of 168 mph. Its combination of a potent engine, rear‑wheel drive dynamics, and careful chassis tuning makes it the apex of speed in the IS lineup, appealing to buyers who want a practical luxury sedan with bona fide sports‑car pace.

Is Lexus discontinuing IS500?


Yes, the Lexus IS 500 has been discontinued, with the 2025 model year being the last one produced. Lexus is ending production of the IS 500, which featured a 5.0L V8 engine, and the 2026 model year will no longer include this variant. A special 2025 Lexus IS 500 Ultimate Edition was released as a final send-off for the model.
 
This video discusses the discontinuation of the IS 500 and its impact on performance sedan enthusiasts: 38sBrakeDownMediaYouTube · Sep 18, 2025

  • The 2025 model year is the last chance to purchase the IS 500. 
  • Production of the IS 500 is scheduled to end in November 2025. 
  • The 2026 model year will no longer offer the IS 500 variant. 
  • A limited-edition 2025 IS 500 Ultimate Edition was released as a final send-off for the model. 

You can watch this video to see a final review of the Lexus IS 500: 54sThe Novak ReportYouTube · Aug 9, 2025



What is the fastest Lexus IS 500?


Lexus IS 500 F SPORT Performance
The fastest Lexus sedan in the 2025 family is the flagship Lexus IS 500 F SPORT Performance. Available in your choice of three trims, the F SPORT Performance variants are fitted with a dynamic 5.0-liter V-8 powertrain that can hit 60 mph in only 4.4 seconds and max out at a 149-mph top speed.



What is the top 5 fastest Lexus?


The Top 5 Fastest Lexus Models for 2025: Unleashing Performance at Performance Lexus Northern Kentucky

  • Lexus RC F Track Edition. 0-60 MPH: 3.96 seconds (estimated)
  • Lexus LC 500. 0-60 MPH: 4.4 seconds.
  • Lexus IS 500 F SPORT Performance. 0-60 MPH: 4.4 seconds.
  • Lexus RC F. 0-60 MPH: 4.2 seconds.
  • Lexus LS 500. 0-60 MPH: 4.6 seconds.



What is the most powerful Lexus V8?


#LexusRCF
The #LexusRCF is the most powerful Lexus V8 ever. From its aggressive styling to its race-ready handling, it delivers exhilaration both inside and out. Learn more: https://lexus.us/3A6EPS8.


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Kevin Bennett

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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.