2019 Toyota Sienna vs. 2019 Mercedes Metris Passenger

Detailed Review, Specifications & Comparison

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Safety

The Sienna Limited Premium FWD’s optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Metris Passenger doesn’t offer pre-crash pretensioners.

For enhanced safety, the front and middle seat shoulder belts of the Toyota Sienna are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Mercedes Metris Passenger doesn’t offer height-adjustable middle seat belts.

The Sienna has standard Active Headrests, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Active Headrests system moves the headrests forward to prevent neck and spine injuries. The Metris Passenger doesn’t offer a whiplash protection system.

The Sienna has standard Pre-Collision System, which use forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The Metris Passenger offers an available collision warning system without the automated brake feature that would prevent or reduce the collision if the driver fails to react.

The Sienna offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Metris Passenger doesn’t offer all-wheel drive.

The Sienna Limited Premium has a standard Bird’s Eye View Monitor to allow the driver to see objects all around the vehicle on a screen. The Metris Passenger only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

To help make backing safer, the Sienna (except L)’s optional cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The Metris Passenger doesn’t offer a cross-path warning system.

The Sienna has standard Safety Connect™, which uses a global positioning satellite (GPS) receiver and a cellular system to help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The Metris Passenger doesn’t offer a GPS response system, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the Sienna and the Metris Passenger have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras and available blind spot warning systems.

For its top level performance in the IIHS moderate overlap frontal impact, side impact, rear impact, roof-crush crash tests, an “Acceptable” rating in the newer small overlap frontal crash test, and with its optional front crash prevention system, the Insurance Institute for Highway Safety grants the Sienna its highest rating: “Top Pick Plus” for 2015, a rating granted to only 172 vehicles tested by the IIHS. The Metris Passenger has not been tested, yet.

Warranty

Toyota’s powertrain warranty covers the Sienna 2 years and 24,000 miles longer than Mercedes covers the Metris Passenger. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the Metris Passenger ends after only 3 years or 36,000 miles.

The Sienna’s 5 year corrosion warranty has no mileage limitations, but the corrosion warranty on the Metris Passenger runs out after 100,000 miles.

Toyota pays for scheduled maintenance on the Sienna for 2 years and 25000 miles. Toyota will pay for oil changes, lubrication and any other required maintenance. Mercedes doesn’t pay scheduled maintenance for the Metris Passenger.

There are over 3 times as many Toyota dealers as there are Mercedes dealers, which makes it much easier should you ever need service under the Sienna’s warranty.

Reliability

J.D. Power and Associates rated the Sienna third among minivans in their 2018 Initial Quality Study. The Metris Passenger isn’t in the top three in its category.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Toyota vehicles are more reliable than Mercedes vehicles. J.D. Power ranks Toyota second in reliability, above the industry average. With 26 more problems per 100 vehicles, Mercedes is ranked 13th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Toyota vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Toyota second in reliability. Mercedes is ranked 17th.

Engine

The Sienna’s 3.5 DOHC V6 produces 88 more horsepower (296 vs. 208) and 5 lbs.-ft. more torque (263 vs. 258) than the Metris Passenger’s 2.0 turbo 4 cyl.

Fuel Economy and Range

On the EPA test cycle the Sienna FWD gets better fuel mileage than the Metris Passenger (19 city/27 hwy vs. 19 city/23 hwy).

To lower fuel costs and make buying fuel easier, the Toyota Sienna uses regular unleaded gasoline. The Metris Passenger requires premium for maximum efficiency, which can cost 20 to 55 cents more per gallon.

The Sienna has 1.5 gallons more fuel capacity than the Metris Passenger (20 vs. 18.5 gallons), for longer range between fill-ups.

Transmission

An eight-speed automatic is standard on the Toyota Sienna, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the Metris Passenger.

Brakes and Stopping

For better stopping power the Sienna’s brake rotors are larger than those on the Metris Passenger:

 

Sienna

Metris Passenger

Front Rotors

12.9 inches

11.8 inches

Rear Rotors

12.2 inches

11 inches

Tires and Wheels

For better traction, the Sienna has larger tires than the Metris Passenger (235/60R17 vs. 225/55R17).

The Sienna SE’s tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the Metris Passenger’s 55 series tires.

For better load carrying, ride, handling and brake cooling the Sienna SE has standard 19-inch wheels. The Metris Passenger’s largest wheels are only 17-inches.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the Sienna can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Metris Passenger doesn’t offer run-flat tires.

Suspension and Handling

The Sienna has standard front and rear stabilizer bars, which help keep the Sienna flat and controlled during cornering. The Metris Passenger’s suspension doesn’t offer a rear stabilizer bar.

Chassis

The Toyota Sienna may be more efficient, handle and accelerate better because it weighs about 100 to 400 pounds less than the Mercedes Metris Passenger.

Passenger Space

The Sienna has 1.4 inches more front headroom, 4.7 inches more front legroom, 2.8 inches more front shoulder room, 1.8 inches more rear legroom, .6 inches more rear hip room and .5 inches more third row legroom than the Metris Passenger.

For enhanced passenger comfort on long trips the Sienna’s middle and third row seats recline. The Metris Passenger’s middle and third row seats don’t recline.

Cargo Capacity

The Sienna’s cargo area provides more volume than the Metris Passenger.

 

Sienna

Metris

Behind Third Seat

39.1 cubic feet

38 cubic feet

The Sienna’s available rear seats fold to accommodate long and bulky cargo. The Metris Passenger doesn’t offer folding rear seats.

To make loading and unloading groceries and cargo easier, especially for short adults, the Sienna SE/XLE/Limited has a standard power liftgate, which opens and closes automatically by pressing a button. The Metris Passenger doesn’t offer a power liftgate.

Ergonomics

The Sienna (except Base/SE/LE) offers a remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The Metris Passenger doesn’t offer a remote starting system.

To help each driver find a more comfortable driving position, the Sienna has a telescoping steering wheel. Much better than just a tilt steering wheel or adjustable seat, this allows a short driver to sit further from the steering wheel while maintaining contact with the pedals. The Metris Passenger doesn’t offer a telescoping steering wheel.

When two different drivers share the Sienna Limited, the memory seats and mirrors make it convenient for both. Each setting activates different, customized memories for the driver’s seat position and outside mirror angle. The Metris Passenger doesn’t offer a memory system.

The Sienna Limited’s standard easy entry system glides the driver’s seat back when the door is unlocked or the ignition is switched off, making it easier for the driver to get in and out. The Metris Passenger doesn’t offer an easy entry system.

The Sienna’s standard power windows have a locking feature to keep children from operating them. Mercedes does not offer a locking feature on the Metris Passenger’s standard power windows.

The Smart Key System optional on the Sienna (except L) allows you to unlock the doors, cargo door and start the engine all without removing a key from pocket or purse. This eliminates searching for keys before loading groceries, getting in the vehicle in bad weather or making a hurried start to your trip. The Mercedes Metris Passenger doesn’t offer an advanced key system.

To improve rear visibility by keeping the rear window clear, the Sienna has a standard rear wiper. A rear wiper costs extra on the Metris Passenger.

While driving with high beams on, sensitive light sensors standard on the Sienna detect other vehicles which could be blinded and automatically switch to low beams. The Metris Passenger doesn’t offer automatic dimming high beams.

The Sienna has standard power remote mirrors. The Metris Passenger only comes with remote mirrors at extra cost. Without them the driver will have to roll down the windows and reach across the car to adjust the mirrors.

When the Sienna Limited is put in reverse, both rearview mirrors tilt from their original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirrors into their original positions. The Metris Passenger’s mirrors don’t automatically adjust for backing.

The Sienna LE/SE/XLE/Limited’s standard rear and side view mirrors have an automatic dimming feature. These mirrors can be set to automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The Metris Passenger doesn’t offer the luxury of automatic dimming mirrors.

On extremely cold winter days, the Sienna Limited’s standard heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the vehicle heater warms up. The Metris Passenger doesn’t offer a heated steering wheel.

The Sienna has a standard center folding armrest for the middle row passengers. A center armrest helps make middle row passengers more comfortable. The Metris Passenger doesn’t offer a middle row seat center armrest.

The Sienna has a standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. Dual zone air conditioning costs extra on the Metris Passenger.

To keep a safe, consistent following distance, the Sienna has a standard Dynamic Radar Cruise Control, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The Metris Passenger doesn’t offer an adaptive cruise control.

Standard Entune App Suite for the Sienna allows the driver and passengers access to select programs on their smartphones, including reading text messages aloud, playing internet radio stations, tagging songs to buy them later, finding fuel prices at nearby service stations, searching the internet and other connected activities without taking their eyes off the road or their hands from the wheel. The Metris Passenger doesn’t offer factory integrated smartphone program access.

To direct the driver from any location to a given street address, a GPS navigation system is available on the Sienna. The Sienna’s navigation system also has a real-time traffic update feature that offers alternative routes to automatically bypass traffic problems. (Service not available in all areas.) The Metris Passenger doesn’t offer a navigation system.

The Sienna Premium has a 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The Metris Passenger doesn’t offer a house-current electrical outlet.

Recommendations

Consumer Reports® chose the Toyota Sienna as its “Top Pick,” the highest scoring vehicle in its category, based on reliability, safety and performance.

The Toyota Sienna outsold the Mercedes Metris by over 10 to one during 2018.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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