From RX 350 to RX 500h: Four Powertrains, One Family SUV Built for Long-Distance Ontario Driving

Planning a drive from the GTA to the Maritimes, or even a long weekend at a northern Ontario cottage, means asking hard questions about your vehicle before you leave the driveway. Can it carry everything? Will you stop for fuel twice? Can it pull a trailer? The 2026 Lexus RX answers all three, but the powertrain you choose changes the equation significantly.

This article focuses on the practical side of the RX: cargo room, towing, fuel range, and on-road comfort for five adults across several hours of highway driving.

Why Road Trip Capability Starts With the Right Numbers

A luxury badge only gets you so far when you’re loading a stroller, two hockey bags, and a week’s worth of groceries. The RX 350h’s cargo hold measures 838 litres behind the second row and expands to 1,308 litres with the rear seats folded. That’s enough for a family’s luggage without resorting to a roof box.

The rear seats fold 60/40 on most trims, and higher packages offer 40/20/40 power-folding split, giving you the option to carry a long item on one side while keeping a passenger on the other.

Towing capacity across the lineup reaches 3,494 lbs (1,585 kg) on the RX 350h and RX 450h+, with the RX 350 and RX 500h models noted at 3,500 lbs (1,588 kg) in Lexus specifications. That covers a small pop-up camper, a fishing boat, or a utility trailer comfortably. Payload, the weight of passengers plus cargo inside the vehicle, sits at 605 kg on the RX 350 and 600 kg on the RX 350h, so five adults plus gear still leaves meaningful margin before you reach the gross vehicle weight rating.

The Specs That Actually Matter on the Drive

Fuel range: The RX 350’s 68-litre tank at 9.9 L/100km combined works out to roughly 686 km between fill-ups, enough to drive from Toronto past Montreal without stopping. The RX 500h’s 64-litre tank at 8.6 L/100km combined gives an estimated 744 km of range, despite producing 367 system horsepower from its 2.4-litre turbocharged hybrid. The RX 450h+ carries a smaller 55-litre tank but sips fuel at 6.7 L/100km combined, stretching that to an estimated 820 km on gasoline alone, plus a 60-kilometre electric-only buffer for city legs of your trip. A 2.5-hour full charge means an overnight stop at a campsite with an outlet tops it right up.

Passenger comfort for long hauls: Front headroom on the RX 350h measures 968 mm, with 978 mm in the rear. Front legroom comes in at 1,044 mm, and rear passengers get 949 mm. Three-zone automatic climate control is available across the lineup, letting the driver, front passenger, and rear passengers each set their own temperature independently, useful when kids and adults have different preferences on a six-hour drive.

Ground clearance and rough terrain: All four powertrains sit at 206 mm of ground clearance, with a 15-degree approach angle and a 25-degree departure angle. That handles gravel cottage roads and unpaved provincial park access routes without drama, though the RX is not designed for deep off-road use. Every RX comes with all-wheel drive, no upgrade required, regardless of which powertrain you select.

Safety for highway kilometres: Lexus Safety System+ 3.0 covers the full suite: Pre-Collision System with pedestrian and bicycle detection, Dynamic Radar Cruise Control with Curve Speed Management, Lane Departure Alert with Steering Assist, and Blind Spot Monitor with Rear Cross Traffic Alert. Higher trims add Traffic Jam Assist and Lane Change Assist, both directly useful on busy 400-series highways.

Which RX Powertrain Fits Your Trip Profile

The RX 350h is the road-trip workhorse for most Ontario families. Its 2.5-litre four-cylinder hybrid produces 246 system horsepower and a 6.5 L/100km combined rating, the most fuel-efficient non-plug-in in the lineup. It tows up to 3,494 lbs (1,585 kg), seats five with generous headroom, and carries the same 838-litre cargo floor as every other RX.

For families doing two or three long drives a year, it reduces fuel costs without adding the complexity of charging infrastructure.

The RX 450h+ suits families who commute daily but also road-trip several times a year. The 60-kilometre electric range covers most daily Ontario commutes without burning a drop of fuel. On the highway it switches seamlessly to self-charging hybrid mode, and the 55-litre tank at 6.7 L/100km combined delivers the longest estimated gasoline range in the lineup.

The trade-off: payload drops to 565 kg, and you need a Level 2 charger at home to use the electric range regularly.

The RX 500h is the choice if your trailer is heavier and you want serious passing power. Its 2.4-litre turbocharged hybrid generates 367 system horsepower and 406 lb-ft of torque, the most of any RX, and the Lexus DIRECT4 all-wheel-drive system manages that torque across all four wheels actively. Fuel economy is the trade-off, at 8.6 L/100km combined, though the 64-litre tank still delivers a long estimated range.

The RX 350 (non-hybrid) is the straightforward pick for buyers who prefer a conventional turbocharged powertrain. The 2.4-litre four-cylinder puts out 275 horsepower and 317 lb-ft of torque, paired with an eight-speed automatic and full-time AWD. The 68-litre tank is the largest in the lineup, though efficiency at 9.9 L/100km combined is the lowest of the four powertrains.

The RX Decision for Ontario Families

The 2026 Lexus RX delivers the cargo room, towing capacity, and fuel range to handle serious Ontario road trips across all four powertrains. Most families will find the RX 350h hits the best balance of efficiency, range, and capability, while the RX 450h+ adds electric convenience for daily driving. The RX 500h earns its place when the trailer is heavier and power matters more than fuel savings.

Visit Erin Park Lexus in Mississauga to compare the RX 350h and RX 450h+ side by side, explore the available trim packages, and schedule a test drive that puts the highway capability you need on the road.