What is the difference between Lexus ES 300h and ES 350H?

In short, the ES 300h is Lexus’s hybrid version, combining a 2.5-liter Atkinson-cycle engine with an electric motor for high efficiency, while the ES 350 (often referred to in some markets as ES 350h) is the gasoline-powered variant with a 3.5-liter V6 that delivers stronger performance but lower fuel economy. In the U.S. lineup, there isn’t a current model officially named ES 350h; the hybrid is ES 300h and the non-hybrid is ES 350.

For readers exploring these two powertrains, it’s useful to understand how the difference in propulsion shapes everything from performance and economy to daily driving feel and ownership costs. Market naming conventions can vary, so checking local specifications is always wise.

Powertrain and performance

Below is a side-by-side look at the two configurations to highlight how they feel on the road and what underpins their behavior.

• ES 300h — Hybrid powertrain: 2.5-liter Atkinson-cycle inline-4 engine paired with an electric motor; total system horsepower around 215 hp; continuously variable transmission (CVT); front-wheel drive is typical; no factory all-wheel-drive option for the hybrid in most markets.


• ES 350 (or ES 350h in some markets) — Gasoline powertrain: 3.5-liter V6 engine; roughly 300+ horsepower (commonly cited around 302 hp) with an 8-speed automatic; available front-wheel drive or all-wheel drive depending on market and trim.

Both models share Lexus refinement, but the drives feel different: the hybrid prioritizes smooth, efficient power delivery and quiet operation at cruising speeds, while the V6-powered ES 350 offers more aggressive acceleration and a more traditional, muscular engine note. In terms of handling, both use Lexus’ comfort-tuned suspension, though the heavier hybrid may feel a touch more composed at highway speeds due to its powertrain packaging.

Fuel efficiency and ownership costs

Fuel economy is the clearest practical distinction between the two. The ES 300h is designed for high efficiency, while the ES 350 emphasizes performance with comparatively lower economy. Here’s what buyers typically see:

• ES 300h — Hybrid efficiency: usually in the mid-40s mpg range in combined testing in many markets, with even higher local figures in some conditions; fuel costs per mile are notably lower than the gasoline-only model.


• ES 350 — Gasoline efficiency: typically in the mid-20s to low-30s mpg range combined, depending on drivetrain (FWD vs. AWD) and year; higher fuel costs per mile compared with the hybrid.

Notes: EPA ratings vary by model year, trim, and drivetrain. AWD can impact economy on the ES 350; the hybrid generally remains FWD. Ownership costs also depend on local fuel prices and maintenance expectations for hybrids versus traditional gasoline engines.

Pricing, trims, and market availability

Pricing and availability can shift by year and region, but some general patterns persist when comparing the two:

• Pricing: The hybrid often carries a premium over a base gasoline model in many markets, reflecting the powertrain and battery components, though the long-term fuel savings can offset this over time.


• Trims and features: In most markets, both variants share similar interior quality and technology levels, with possible differences in eco-specific displays and driving mode options. Some regions may offer additional options on the ES 350 that aren’t available on the ES 300h.


• Market naming: In the United States, Lexus has historically used ES 300h for the hybrid and ES 350 for the gasoline version; the designation ES 350h appears in some non-U.S. markets or older literature, but current U.S. documentation generally does not list an ES 350h.

For buyers, the key takeaway is to align the choice with driving priorities: prioritize fuel savings and city/highway efficiency with the ES 300h, or chase stronger acceleration and high-speed refinement with the ES 350.

Interior, technology, and everyday practicality

Inside, the ES lineup shares a similar cabin layout, materials, and tech suite, including Lexus safety systems and infotainment features. The primary differences tied to powertrain are typically limited to energy-monitoring displays and drive-mode selections that reflect the hybrid’s efficiency focus. Cargo space and seating comfort remain strong in both variants, preserving the ES’ reputation for a comfortable, quiet ride.

In short, the two versions cater to different priorities: exceptional fuel economy and smoothness in the ES 300h, versus robust, immediate acceleration and a more traditional gasoline driving experience in the ES 350.

What to consider when choosing

To help readers decide, here’s a simple guide with practical considerations:

1. Prioritize daily commuting efficiency and long-term fuel savings: choose the ES 300h.


2. Prioritize quick, confident acceleration and highway merging: choose the ES 350.


3. Consider total cost of ownership: compare upfront price differences against expected fuel savings over your typical ownership period.

Whichever you choose, both versions deliver Lexus quality, refinement, and reliability, making the ES a strong choice in the luxury midsize sedan segment.

Summary

The Lexus ES 300h is the efficiency-focused hybrid version, using a 2.5-liter engine with an electric motor to deliver around 215 system horsepower and high mpg, typically in front-wheel-drive configuration. The ES 350 (often referenced as ES 350h in some markets) is the gasoline-powered variant with a 3.5-liter V6 and an 8-speed automatic, delivering stronger straight-line performance but lower fuel economy. In the U.S., there is currently no official ES 350h; buyers compare ES 300h versus ES 350 to weigh hybrid efficiency against V6 power. Always verify local market terminology, specs, and available drivetrains for the latest model-year details.

Does the ES 350 hybrid require premium gas?

87 octane is fine just use top tier gas.

What is the difference between ES 300h and ES 350h?

The ES 350 – a class leader
Unlike the ES 300h, it relies on a V6 engine that delivers an extra 87Bhp compared to the hybrid. To give it that infamous Lexus ride quality, the smart suspension minimises body roll, making the ES feel planted and responsive through the curves and quick off the line from a standing start.

What is the difference between Lexus ES 350 and IS 300?

The main differences are that the Lexus IS 300 is a sportier, more compact sedan focused on handling, while the ES 350 is a larger, midsize luxury sedan prioritizing comfort and a smoother ride. The IS 300 typically has a more performance-oriented turbocharged four-cylinder engine and rear-wheel-drive (with available all-wheel drive), whereas the ES 350 features a more powerful, smooth-revving 3.5L V6 engine and front-wheel-drive. The ES 350 also offers more cargo space and rear legroom, while the IS 300 provides a more driver-focused feel and tighter handling. 
You can watch this video to see a comparison of the interior and exterior of the Lexus IS and ES models: 54sKenny VacekYouTube · Jul 1, 2020
Lexus IS 300

• Driving Dynamics: More agile and sporty, designed with a focus on performance and handling. 
• Engine: A turbocharged 2.0L four-cylinder engine that produces around 241 horsepower (RWD) or 260 horsepower (AWD). 
• Drivetrain: Rear-wheel drive is standard on most models, with all-wheel drive available. 
• Size: A smaller, more compact sport sedan. 
• Interior & Cargo: Features a tighter rear seat and less cargo space (around 10.8 cubic feet). It does offer more front-row legroom in some models compared to the ES. 

This video demonstrates the performance and handling of the Lexus IS 300 and IS 350: 1mBen HardyYouTube · Jan 9, 2023
Lexus ES 350

• Driving Dynamics: Smooth, comfortable, and quiet ride focused on passenger comfort. 
• Engine: A more powerful 3.5L V6 engine that produces around 302 horsepower. 
• Drivetrain: Front-wheel drive. 
• Size: A larger, midsize sedan. 
• Interior & Cargo: Offers significantly more rear legroom and overall passenger space, along with a larger trunk (around 16.7 cubic feet). 

This video discusses the features and comfort of the Lexus ES 350: 58sDiscerning CarsYouTube · May 2, 2021
Which one is right for you?

• Choose the IS 300 if: You prioritize a more engaging and sporty driving experience, enjoy sharp handling, and don't need as much rear-seat or trunk space. It's a good choice for those who want a "driver's car". 
• Choose the ES 350 if: Your priority is a comfortable and smooth ride, more interior space for passengers and cargo, and the effortless power of a V6 engine. It's a better option for families or those who frequently have rear-seat passengers. 

What is the difference between Lexus 300 and 350 hybrid?

The 2024 Lexus ES 350 is outfitted with a 3.5-liter V6 gas engine. It generates 302 horsepower and comes with an eight-speed auto transmission and front-wheel drive. The ES 300h combines a battery-driven component with a 2.5-liter, four-cylinder engine to produce 215 horsepower.