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Which is faster, ISF or GS F?

When it comes to high-performance luxury sedans, the Lexus ISF and GS F are two of the most sought-after models. Both offer exceptional power and handling, but the question remains: which one is faster? In this article, we'll dive into the key differences between these two Lexus powerhouses and determine which one comes out on top in terms of pure speed.


Lexus ISF: A Powerful Contender


The Lexus ISF, introduced in 2007, is a high-performance variant of the Lexus IS sedan. Powered by a 5.0-liter V8 engine, the ISF produces a respectable 416 horsepower and 371 lb-ft of torque. This allows the ISF to accelerate from 0 to 60 mph in just 4.6 seconds. The ISF's performance is further enhanced by its responsive 8-speed automatic transmission and a well-tuned suspension system that provides excellent handling and cornering capabilities.


Lexus GS F: The Flagship Performance Sedan


The Lexus GS F, on the other hand, is the flagship performance sedan in the Lexus lineup. Introduced in 2016, the GS F is powered by a 5.0-liter V8 engine that produces a staggering 467 horsepower and 389 lb-ft of torque. This allows the GS F to accelerate from 0 to 60 mph in just 4.5 seconds, making it slightly faster than the ISF.


The Verdict: GS F Edges Out the ISF


While both the Lexus ISF and GS F are impressive performance sedans, the GS F comes out on top in terms of pure speed. With its more powerful engine and slightly quicker acceleration, the GS F is the faster of the two models. However, it's important to note that the differences in performance are relatively small, and both vehicles offer an exhilarating driving experience for enthusiasts.


Ultimately, the choice between the ISF and GS F will come down to personal preference, budget, and the specific features and characteristics that are most important to the individual buyer. Both models are excellent examples of Lexus' commitment to delivering high-performance luxury vehicles that combine power, handling, and refinement.

What is the difference between ISF and GS F?


The main difference is that the Lexus GSF is a larger, more luxurious, and refined midsize sedan, while the Lexus IS F is a smaller, sportier, and more raw compact sports sedan. The GSF offers more interior space and comfort, making it better suited for daily use as a performance car, while the IS F was designed for a more aggressive and track-focused driving experience. Both cars are powered by a 5.0-liter V8 engine, but the GSF's engine is more powerful (467467467 hp vs. 416416416 hp) and it has a more modern chassis and technology.
 
You can watch this video to see an acceleration test of the Lexus GS F: 53sSpeedLabs // MotorEnvyYouTube · Jan 24, 2019

Feature Lexus GSF Lexus IS F
Size Midsize sedan, more interior space Compact sedan, smaller interior
Focus Refined luxury and performance, better daily driver Raw, aggressive sportiness, more track-focused
Engine 5.05.05.0L V8, 467467467 hp 5.05.05.0L V8, 416416416 hp
Transmission 8-speed automatic with paddle shifters 8-speed automatic with paddle shifters
Chassis/Handling More polished and refined ride, but still very capable More raw and visceral road feel
Comfort More luxurious and comfortable for daily use Less emphasis on comfort, more on performance
Technology More modern infotainment system (though still outdated by some metrics) Less advanced infotainment system
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Is the Lexus IS or GS faster?


Acceleration, top speed, and track capability

Model0–60 mph
IS F~4.6 seconds
GS F~4.4 seconds
Jun 18, 2025



How much horsepower does a GS F have?


We know a lot of you guys watch without subbing time to send. You had an ISF. Right i did and it was pretty much the same let's just get the bias. Out. So yes it is very similar to my old Lexus ISF.



Is the Lexus GSF fast?


Though. So the Lexus GSF did 40 to 100 in 7.44 seconds i was right just a bit slower than the Mustang GT. But still pretty fast for a four-door sedan.


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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.