What is the difference between GS300 and GS 350?
The GS 350 is the more powerful, newer variant in Lexus’ midsize sedan lineup, while the GS 300 represents an older, smaller-engine option. The key differences lie in engine, performance, and available features rather than a simple trim change.
Powertrain and performance
Overview of the engines, horsepower, torque, and drivetrain options that separate the two models.
Engine
- GS 300 uses a 3.0-liter inline-six engine in older generations.
- GS 350 uses a 3.5-liter V6 engine (2GR-FSE) in contemporary generations.
The move from a 3.0L inline-six to a 3.5L V6 is the core powertrain shift between the two, delivering noticeably more peak power in the GS 350.
Power and torque
- GS 300 typically produces roughly mid-200s horsepower (around 245–260 hp, depending on year and market).
- GS 350 typically produces about 311 hp with torque in the neighborhood of 270–280 lb-ft.
The difference translates to stronger acceleration and higher highway performance for the GS 350, especially on-demand passing power.
Transmission and drivetrain
- Both generations offer rear-wheel drive as standard, with all-wheel drive available on select GS 300 and GS 350 variants depending on market and year.
- Transmission range has included 6-speed automatics in earlier years; many later GS 350 models offered an 8-speed automatic in higher trims or later refreshes.
In short, the GS 350 generally benefits from a more modern drivetrain setup and, in later years, a smoother, more advanced transmission pairing than the GS 300.
Design, features and model coverage
How the two models differ in equipment, trims, and the lifecycle of the nameplate.
Model years and naming
- GS 300 was the traditional inline-six option in older GS generations.
- GS 350 became the standard V6 option in newer generations, often replacing the GS 300 nomenclature in contemporary lineups.
In practice, the GS 350 has served as the more up-to-date flagship for Lexus’ GS lineup in recent years, with styling updates and modern technology concentrated there.
Trim levels and features
- Base, Luxury, and F Sport trims have appeared across GS 300 and GS 350 lineups, though content and tech upgrades typically appear earlier and more comprehensively on the GS 350.
- Technology and safety features (navigation, driver-assistance systems, premium audio, and advanced infotainment) are generally more extensive on GS 350 variants, especially in later years.
Overall, the GS 350 tends to offer more standard equipment and newer features purely by virtue of its position as the newer, more powerful option.
Practical considerations for buyers
What to weigh when choosing between a GS 300 and a GS 350 on the used market or in the showroom.
Cost and ownership
- Initial purchase price for a GS 350 is typically higher than for a GS 300 due to the larger engine and upgraded features.
- Fuel economy tends to be better on the GS 300, reflecting its smaller engine, but real-world figures depend on driving style and drivetrain (RWD vs AWD).
- Maintenance and parts pricing can vary by year and market; older GS 300 models may be cheaper to insure and repair but harder to find parts for in the long term.
Choosing between them often depends on whether you prioritize upfront cost and efficiency (GS 300) or stronger performance and newer tech (GS 350).
Resale value and reliability
- Higher-performance variants like the GS 350 generally hold value better in markets where performance cars maintain appeal.
- Reliability and maintenance history are critical: well-documented service, records, and mileage significantly influence resale for either model.
As with any used luxury sedan, a thorough inspection and a test drive are essential to verify condition, regardless of model name.
Summary
The GS 350 is the more powerful, modern choice, powered by a 3.5-liter V6 that delivers substantially more horsepower and torque than the older 3.0-liter inline-six in the GS 300. The GS 350 also tends to come with richer standard equipment and newer tech, while the GS 300 offers a more economical option with lower initial cost. Across generations, the primary differences boil down to engine size and performance, transmission options, and the level of features you get, with the GS 350 generally representing the upper end of the mid-size Lexus sedan lineup.
Is the GS 350 fast?
GS 350 Performance
It goes from 0-60 MPG in 5.7 seconds, reaching a top speed of 143 MPH.
What is the most common problem with Lexus GS 350?
Top Lexus GS350 Problems
- Brief Rattle or Knocking Noise on Initial Start Up.
- The Inside Rear View Mirror May Become Discolored.
- Software Upgrade for Navigation & Heater Control Displays.
- Lexus GS350 sputtering issue with check engine light and traction control warning.
Why was GS 350 discontinued?
With the shift in consumer preferences toward SUVs and crossovers, Lexus decided to discontinue the GS lineup in favor of focusing on higher-volume models.
What does GS mean in GS 300?
The GS name stands for Grand Sedan.
