Infiniti M35h Hybrid: 360-HP Luxury Sedan Review

The Infiniti M35h stands out as a pioneering hybrid sedan that challenges conventional notions of performance and fuel savings. Combining a robust 3.5-liter V6 engine with a potent electric motor, this luxury vehicle delivers 360 horsepower while achieving impressive mileage figures. Ideal for executives seeking both thrill and practicality, the M35h accelerates from 0 to 60 mph in just 5.2 seconds, outpacing its non-hybrid siblings.

Engineering a Hybrid Powerhouse

At the heart of the Infiniti M35h lies an innovative powertrain that integrates a 302-hp V6 gasoline engine with a 67-hp electric motor, producing a combined 360 hp and substantial torque. The electric component contributes 199 lb-ft of torque at low speeds, providing instant shove for quick launches. This setup propels the sedan through the quarter-mile in 13.9 seconds at 103 mph, demonstrating sports sedan credentials.

The seven-speed automatic transmission features a unique second clutch that allows seamless transitions between electric and gas power. This design enables up to 50% of driving time in electric-only mode, even at highway speeds over 60 mph, significantly boosting efficiency. The system’s quick engine cut-off and re-engagement, while occasionally noticeable, contributes to real-world economy figures often exceeding 26 mpg over long distances.

Performance on the Road

Drivers appreciate the M35h’s balanced dynamics. Unique shocks, anti-roll bars, and 245/50-18 Michelin tires with taller sidewalls deliver a composed ride that’s slightly softer than standard M models. The electrohydraulic steering, though requiring moderate effort, offers precise on-center feel without the twitchiness of sportier variants.

In Sport mode, the hybrid unleashes its full potential, with rapid throttle response and a throaty V6 soundtrack. Acceleration to 62 mph takes 5.5 seconds, making it competitive in the premium segment. Braking is confident, with smooth ABS intervention and short stopping distances of 126 feet from 60 mph, despite the regenerative system’s soft pedal feel.

This table highlights the hybrid’s edge in acceleration, thanks to electric torque fill.

Fuel Efficiency and Real-World Results

Official EPA ratings credit the M35h with 27 mpg city and 32 mpg highway, a 50% urban improvement over the M37’s 18/26 mpg. Independent tests confirm these claims, with observed averages of 25.8 to 26 mpg in mixed driving, and some tanks reaching 30 mpg. The low 0.26 drag coefficient and lighter curb weight aid these figures.

• Electric motor powers up to 62 mph purely on battery.
• Four modes: Eco, Normal, Sport, Snow optimize for conditions.
• Regenerative braking recaptures energy effectively.

Owners report dramatic savings in stop-start urban cycles, where the engine frequently shuts off.

Luxury Interior and Comfort

Inside, the M35h exudes premium quality with Japanese white ash wood trim, suede-like headliner, and heated/cooled front seats. No hard plastics mar the cabin; every surface feels upscale. The spacious layout accommodates executives comfortably, with supportive seating for long hauls.

Technology includes intuitive controls, though the hybrid display keeps drivers informed of energy flow. Quiet operation in EV mode enhances refinement, masking the powertrain’s complexity.

Design and Practicality

The M35h’s curvaceous sheetmetal sets it apart, blending aggressive lines with aerodynamic efficiency. Rear-wheel drive ensures balanced handling, while the hybrid battery integrates without sacrificing trunk space significantly. Kerb weight remains competitive, aiding agility.

Driving Modes Explained

The selectable modes transform the car’s character:

• Eco: Prioritizes fuel savings with softened throttle and early engine shut-off.
• Normal: Balanced daily driving.
• Sport: Sharper responses, firmer suspension for dynamic runs.
• Snow: Traction-focused for inclement weather.

This versatility gives owners two cars in one: an efficient commuter and a performance saloon.

Pros and Cons

Who Should Buy the Infiniti M35h?

This hybrid suits performance enthusiasts disillusioned with thirsty V8s or dull electrics. It’s perfect for those prioritizing luxury sedans with green credentials without compromising speed. Compared to rivals like the Lexus GS450h, the M35h offers superior power and value.

Base pricing started around $54,595, with loaded models nearing $61,745, positioning it competitively.

Long-Term Ownership Considerations

Hybrid components add complexity, but Infiniti’s warranty covers the battery. Real-world tests over 1,000 miles show durability, with minimal issues beyond expected transitions. Fuel savings offset premium costs quickly for high-mileage drivers.

FAQ

What is the combined horsepower of the Infiniti M35h?

360 hp from the V6 and electric motor pairing.

How does the M35h’s fuel economy compare to diesel models?

It achieves up to 40.4 mpg combined, often better than diesels due to EV capability.

Is the M35h fun to drive?

Yes, Sport mode delivers engaging dynamics with strong acceleration and balanced chassis.

What makes the steering special?

Electrohydraulic system provides linear, communicative feel despite hybrid setup.

Can it drive on electric power alone?

Up to 62 mph, spending significant time in EV mode for efficiency.