Question 1

Which has lower long-term cost — Toyota Prius or Toyota Sienna?

Accepted Answer

Based on national-average assumptions, the Toyota Prius is about $13,206 cheaper to own over 5 years. The breakdown includes depreciation, insurance, fuel or energy, maintenance, financing, and registration. Your localized total may differ based on state fuel prices, insurance rates, and EV registration fees.

Question 2

Which is cheaper to insure — Toyota Prius or Toyota Sienna?

Accepted Answer

Insurance varies by state, ZIP code, age, and credit tier. Enter a ZIP to see a localized estimate; both vehicles' national-average premiums are shown on the compare page.

Question 3

Which depreciates faster — Toyota Prius or Toyota Sienna?

Accepted Answer

Depreciation over the first five years is itemized in the cost breakdown. Luxury and EV models typically lose more value in early years; segment leaders and Toyota/Honda hold value better.

Question 4

Is the Toyota Prius better than the Toyota Sienna?

Accepted Answer

It depends on how you drive. The compare page scores both vehicles across five pillars — cost of ownership, powertrain, driver assistance, livability, and safety — combined into one MotiveGrid Score, alongside a 5-year cost breakdown and a clear verdict. Pick the one whose strengths match how you actually use a car.

Question 5

Why do these two vehicles get different ADAS (driver-assist) scores?

Accepted Answer

Our ADAS scale weighs sensor stack (radar + camera vs camera-only), hands-free operating domain (highway vs any divided road), driver-monitoring quality (eye-tracking vs torque sensor), and whether the system gets OTA improvements. Two vehicles can advertise the same feature names and still score 20+ points apart once operating envelope and update cadence are accounted for.

Metric	Toyota Prius	Toyota Sienna
MotiveGrid Score	98	75
Cost of Ownership	92	86
Powertrain	76	63
Driver Assistance	43	43
Livability	82	56
Safety	97	73
5-Year Cost to Own	$34,915	$48,121
Depreciation (5-yr)	$10,792	$15,961
Fuel / Energy (5-yr)	$5,908	$10,584
Insurance (5-yr)	$10,165	$10,705
Maintenance (5-yr)	$1,340	$1,465
Tires (5-yr)	$1,550	$2,150
Financing (5-yr)	$4,296	$6,142
Registration (5-yr)	$865	$1,115
Starting Price	$28,550	$40,820
Horsepower	194 hp	245 hp
MPG (combined)	57 mpg	36 mpg
Cargo volume	20.3 cu ft	33.5 cu ft
Seating	5	8
Drivetrain	FWD	FWD

Toyota Prius vs. Toyota Sienna

Five measured pillars, weighted into one score.

Which vehicle is right for you

Cost of Ownership

Frequently asked questions

Where these rank

Helpful guides