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Introduction:

To help members understand the latest automotive technology so they can purchase vehicles that best suit their needs, the Automobile Club of Southern California's Automotive Research Center (ARC) began testing and reviewing vehicles over a decade ago in the AAA Green Car Guide, which initially focused entirely on rating fuel-efficient, low-emitting vehicles.

For the 2021 edition, we've expanded the focus of the guide to include testing and ranking cars and light trucks with the latest technology, including having at least one advanced driver-assistance system (ADAS) feature. In addition to vehicle evaluation, the guide covers a number of pertinent automotive topics in detail—for example, the latest advanced safety features, how to properly maintain your vehicle, and the development of autonomous vehicles.

home Home » Search Results » 2021 Toyota Sienna Hybrid LE
How The Car Guide Rating Works
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Test Results and Rankings:
The green cars tested by the ARC are evaluated on the basis of 13 categories: emissions, fuel economy, crashworthiness, braking, acceleration, handling, cargo-carrying capacity, ride quality, interior noise, ease of entry and exit, maneuverability, roominess, and visibility. The scores for the categories are totaled, and the cars are ranked from high to low.

2021 Toyota Sienna Hybrid LE

Vehicle Type: SUV/Minivan Hybrid
83
 overall score
Category Ranking: 4
Vehicle Price
Base Price: $34,460
Price as Tested: $38,155
Fuel Information
Fuel Type: Regular
Fuel Capacity (gal): 18
EPA City mpg36
EPA Highway mpg36
EPA Combined mpg36
Advanced Safety Features
Adaptive Cruise Control [S]
Advanced Headlights [S]
Automatic Emergency Braking [S]
Blind-Spot Warning [S]
Forward-Collision Warning [S]
Lane-Departure Warning [S]
Lane-Keeping Assistance [S]
Rear Cross-Traffic Warning [S]
[S] Standard, [O] Optional
Overall Observations
Minivans have fallen on hard times since SUVs became the top dogs in the automotive marketplace. But the redesigned 2021 Toyota Sienna Hybrid soldiers on, and it's clear that Toyota isn't giving up the fight. Two things stand out about the new Sienna. The obvious virtue is its sleeker exterior styling, which makes the previous Sienna look dowdy. Its hidden asset is even more significant. The Sienna is available only as a hybrid - which involves a tradeoff. The previous version's V6 engine produced 296 hp; the new hybrid powertrain makes just 245 hp. As a result, the new Sienna feels much slower, especially fully loaded. But it achieves an EPA-estimated 36 mpg in combined driving, compared with just 21 mpg for the previous generation. That's huge, needless to say. The Sienna also delivers a smooth, comfortable ride for seven to eight people and their gear - although maneuvering a vehicle this big is a bit tricky and takes some practice. Our base model LE tester lacked some niceties we'd have liked - heated and cooled front seats and a power liftgate, for example. LED headlights, three-row automatic climate control, and Toyota's Safety Sense 2.0 suite of advanced safety features are standard issue, however.
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Strengths and Weaknesses
Strong Points
  • Spacious interior for passengers and cargo
  • Good fuel economy and range
  • Smooth, comfortable ride
  • Rear-seat reminder
Weak Points
  • Slow, noisy powertrain
  • Bland styling
  • Cheap interior quality
  • Poor rear visibility
Vehicle Specifications
Model year tested: 2021
Number of passengers (F/R): 2/6
Curb weight (lbs): 4580.0
Exterior L / W / H (in): 203.7 / 78.5 / 69.7
Wheelbase (in): 120.5
Number of air bags: 11
Warranty (months/miles): 36/36,000
Tire manufacturer and model: Falken Ziex ZE001A A/S
Front and rear tire size: 235/65 R17
Max towing capacity (lbs): 3500
Headlight type: LED
Transmission type: Hybrid drive
Drivetrain type: Front wheel
Engine/motor: 2.5L 4-Cyl. Dynamic Force
Engine horsepower @ RPM: 189 @ 6000
Electric motor horsepower: 180
Combined system horsepower: 245
Test Data
Test Vehicle Scores
Advanced Safety Features: 10.00
Fuel Efficiency: 6.40
EPA Emissions Score: 7.00
Acceleration: 4.37
Braking: 1.77
Crashworthiness: 5.58
Handling: 6.50
Ride Quality: 7.11
Interior Size: 6.18
Easy of Entry and Exit: 7.80
Visibility: 5.53
Interior Noise: 7.59
Cargo Capacity: 7.93
2020 BMW X3 XDrive30e
More Details
Vehicle Type:  SUV/Minivan
Fuel Type:  Hybrid
mpg: 21/27
Price as Tested:  $65,020
86
 out of 130
IIHS / NHTSA: 
2020 Tesla Model Y Long Range AWD
Car Guide Winner: 1st Place SUV/Minivan
More Details
Vehicle Type:  SUV/Minivan
Fuel Type:  Electric
MPGe: 127/114
Price as Tested:  $53,190
92
 out of 130
IIHS / NHTSA: 
2020 Volvo S90 T8 E-AWD R-Design
Car Guide Winner: 1st Place Large
More Details
Vehicle Type:  Large
Fuel Type:  Hybrid
mpg: 28/31
Price as Tested:  $73,840
87
 out of 130
IIHS / NHTSA: 
2020 Jaguar I-Pace EV400 HSE
More Details
Vehicle Type:  SUV/Minivan
Fuel Type:  Electric
MPGe: 80/72
Price as Tested:  $84,276
87
 out of 130
IIHS / NHTSA: 
2020 Chevrolet Bolt EV Premier
Car Guide Winner: 1st Place Small
More Details
Vehicle Type:  Small
Fuel Type:  Electric
MPGe: 127/108
Price as Tested:  $43,735
86
 out of 130
IIHS / NHTSA: 
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