Choosing the Right Mazda CX-90 Powertrain: MHEV Inline-Six Turbo vs. PHEV for British Columbia Drivers

The Mazda CX-90 is available with two distinct powertrain options, and they serve different priorities. One is a turbocharged 3.3 L inline-six with a 48-volt mild hybrid system. The other is a plug-in hybrid that pairs a 2.5 L four-cylinder with an electric motor and a 17.8 kWh battery. Both come with i-Activ all-wheel drive, an 8-speed automatic transmission, and seating for up to eight — but the driving experience, fuel costs, and towing capabilities differ enough that British Columbia buyers should understand each option before committing.

For Burnaby families and commuters who are weighing these two powertrains, the decision often comes down to how and where you drive most. Long highway stretches, frequent towing, and a preference for linear power favour one option. Short urban commutes, a desire for electric-only driving, and lower fuel costs favour the other. Here is how they compare.

At a Glance: CX-90 MHEV vs. CX-90 PHEV

Performance and Efficiency

The MHEV's 3.3 L turbocharged inline-six delivers its power smoothly and with authority. In standard tune (GS, GS-L, and GT trims), it produces 280 hp and 332 lb-ft of torque on regular fuel. The high-output version in the GT-P and Signature rises to 340 hp and 369 lb-ft on premium fuel. The 48-volt mild hybrid system assists with low-speed throttle response and efficiency — it does not provide electric-only driving, but it does smooth out the power delivery and reduce fuel consumption during acceleration and deceleration.

The PHEV takes a fundamentally different approach. Its combined system — a 2.5 L naturally aspirated four-cylinder paired with an electric motor — produces 323 hp and 369 lb-ft of torque on premium fuel. The 17.8 kWh lithium-ion battery allows up to 42 km of electric-only driving, and the system is designed to operate on the electric motor alone in many scenarios, including cruising at highway speeds. For drivers whose daily round trip falls within that 42 km window — say, a commute from Burnaby to downtown Vancouver and back — the PHEV can cover substantial portions of daily driving on electricity alone.

The energy consumption numbers tell the story clearly: the MHEV returns approximately 9.3 L/100 km combined (standard output), while the PHEV achieves 4.2 Le/100 km. Charging the PHEV from 20% to 80% takes approximately 1.3 hours on a Level 2 (240V) charger.

Towing and Capability

This is where the MHEV pulls ahead in a measurable way. From the GS-L trim and above, the MHEV offers a towing capacity of 2,268 kg (5,000 lb) when equipped with Mazda genuine towing accessories. The GS-L and higher trims also gain a dedicated Towing drive mode through Mi-Drive. For British Columbia drivers who tow boats to the Okanagan, haul trailers to Whistler, or pull camping setups along Highway 1, this is a meaningful advantage.

The PHEV's towing capacity is rated at 1,588 kg (3,500 lb) — enough for smaller trailers and recreational equipment, but noticeably less than the MHEV's maximum. If regular heavy towing is part of your routine, the MHEV is the stronger match.

Seating, Trims, and Available Features

Both powertrains share the CX-90's spacious platform with up to eight-passenger seating. The MHEV lineup spans five trims: GS, GS-L, GT, GT-P, and Signature. The PHEV is available in three: GS, GS-L, and GT.

The MHEV's broader trim range means access to the high-output engine (GT-P and Signature), as well as the Signature's premium cabin with Nappa leather, Maple Wood accents, and the Driver Personalization System. The PHEV GT includes Nappa leather seating (available in black or Pure White), a 1,500-watt AC power outlet in the cargo area, and a fully digital 12.3-inch instrument panel display that visualizes the electrified powertrain's operation.

Both powertrains share standard safety features across the lineup, including Mazda Radar Cruise Control with Stop & Go, Smart Brake Support, Blind Spot Monitoring, Lane Keep Assist, and i-Activ AWD. Higher trims add Cruise and Traffic Support, a 360° View Monitor, and Emergency Lane Keeping with Blind Spot Assist.

Which CX-90 Powertrain Fits Your Driving Profile?

The choice between MHEV and PHEV often becomes clear once you map it against your typical week. If you tow frequently, drive long distances on highways, want access to the full trim range including the 340 hp high-output engine, and prefer to fuel up with regular gasoline, the MHEV lineup offers the flexibility and capability to match. If your daily driving is predominantly urban, you have access to home or workplace Level 2 charging, and you want to minimize fuel costs and emissions on short trips while still having a full-size three-row crossover for weekends, the PHEV makes a strong case.

Neither powertrain compromises on the CX-90's core strengths: its double wishbone front suspension, multilink rear suspension, Kinematic Posture Control, and the confident, planted driving feel that Mazda engineered into its large platform. The difference is in how you use the vehicle day to day.

Experience the CX-90 at Metrotown Mazda

Both the CX-90 MHEV and CX-90 PHEV are available to test drive at Metrotown Mazda. Book a visit at our Burnaby dealership to compare both powertrains back to back and find out which one matches your daily driving needs across British Columbia.