Toyota Prius Plus (2021)

Estimated running costs and MOT pass rates from 47 MOT tests in 2024.

Annual Cost

£2,236

£186/month

MOT Pass Rate

87%

Good

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 18-32

1790cc Hybrid

Solid Option

87% pass rate, £2,236/year to run. 5 points above average.

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Hybrid1790cc5 years old47 tests81k miles avg

Annual Running Costs

Fuel (Hybrid, 1790cc)

~36 mpg (petrol-engine estimate; hybrids usually use less)

£1,631

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

£350

Total per year£2,236

Per month£186/mo

Per week£43/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).

Reliability Verdict

87% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the average of 82% across all models in our data.

87% of MOT tests on Toyota Prius Pluss from 2021 ended in a pass in 2024, when they were about 3 years old. That's based on 47 tests across the UK, retests included. The average mileage recorded at those tests was 80,782 miles.

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How Does It Compare?

Rank among 2021 models2972nd of 3,336(bottom 11%)

Rank among Toyota models430th of 970(top half)

vs average of all models+5%(82% avg)

vs 2021 models average-5%(92% avg)

vs Toyota average+3%(84% avg)

Mileage Analysis

80,782

Average miles

22,200

Expected for age

The average 2021 Toyota Prius Plus had 80,782 miles on the clock at its 2024 MOT, which is well above the expected 22,200 miles for a 3-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.

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Best Year to Buy?

Of the years with at least 100 tests, the 2018 model has the highest MOT pass rate at 97%, while the 2012 model has the lowest at 88%. The 2021 scores 87%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Toyota Prius Plus by Year

Year	Pass Rate	Tests	Avg Mileage
2021	87%	47	80,782 mi
2020	91%	196	62,543 mi
2019	96%	1,007	99,319 mi
2018	97%	647	97,668 mi
2017	94%	700	96,038 mi
2016	93%	948	137,897 mi
2015	93%	779	153,759 mi
2014	91%	1,034	137,569 mi
2013	91%	1,026	115,047 mi
2012	88%	587	102,887 mi
2011	95%	101	75,960 mi

Similar Cars to Consider

Toyota Yaris

2019 · 1497cc Hybrid

£1,853/year

93%

+6%

MINI Cooper S

2019 · 1499cc Hybrid

£1,853/year

92%

+5%

Land Rover Range Rover Sport

2019 · 1997cc Hybrid

£2,086/year

94%

+7%

Toyota Prius

2019 · 1797cc Hybrid

£2,086/year

94%

+7%

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About the 2021 Toyota Prius Plus

The 2021 Toyota Prius Plus is a family car. Our records list a 1790cc hybrid engine, though engines vary between versions. 47 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It sits in the bottom 11% of 2021 models for MOT pass rate.

With an average of 80,782 miles recorded at its 2024 MOT tests, Toyota Prius Plus owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.

2021 Toyota Prius Plus Fuel Costs

The 1790cc hybrid engine offers a reasonable balance between performance and economy. Our estimate uses around 36 mpg, the figure for a petrol engine of this size, which works out to roughly £1,631 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year). As a hybrid it should use less than that, and real-world fuel costs depend a lot on how much electric-only driving you do.

What does it cost to own a 2021 Toyota Prius Plus?

Total estimated annual running cost is £2,236 (£186/month), broken down as £1,631 fuel, £200 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 87% pass rate. Keeping on top of servicing will help avoid surprises.

Toyota Prius Plus Reliability Trend

The Toyota Prius Plus has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.

Buying a Used 2021 Toyota Prius Plus

At 5 years old, the Toyota Prius Plus offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2018 model has the highest pass rate at 97%. Note: with only 47 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

Hybrid Battery Health

Medium risk

After 5 years, hybrid battery capacity may have reduced. A full replacement costs £2,000-£4,000, though reconditioning is cheaper at £500-£1,500.

Inverter and Power Electronics

Low risk

The inverter converts DC to AC for the electric motor. Failures are expensive (£1,500+) but relatively rare. Listen for unusual buzzing sounds.

Regenerative Braking

Medium risk

Brake discs can corrode from reduced use (the electric motor handles most braking). Surface rust is normal but deep pitting needs attention.

Clutch Wear

Medium risk

With an average of 81k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.

Brake Discs and Pads

Medium risk

High-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2021 Toyota Prius Plus stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
Toyota Prius Plus(2021)	87%	£1,631	£200	Grp 18-32	£2,236
Toyota Yaris(2019)	93%	£1,398	£200	Grp 12-25	£1,853-£383
MINI Cooper S(2019)	92%	£1,398	£200	Grp 12-25	£1,853-£383
Land Rover Range Rover Sport(2019)	94%	£1,631	£200	Grp 18-32	£2,086-£150
Toyota Prius(2019)	94%	£1,631	£200	Grp 18-32	£2,086-£150

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2021 Toyota Prius Plus

Is the 2021 Toyota Prius Plus reliable?

Good reliability. Occasional issues but generally solid. 87% of MOT tests on 2021 Toyota Prius Pluss ended in a pass, from 47 tests (DVSA MOT data for tests in 2024, retests included). That's 5 points above the average of 82% across all models in the same data.

How much does a 2021 Toyota Prius Plus cost to run?

Our estimate is £2,236 a year (£186 a month): £1,631 fuel, £200 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2021 Toyota Prius Plus?

87% of 47 MOT tests on the 2021 Toyota Prius Plus ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2972nd of 3,336 models first registered in 2021 (bottom 11%).

Which year Toyota Prius Plus has the best MOT pass rate?

Of the years with at least 100 tests, the 2018 Toyota Prius Plus has the highest MOT pass rate at 97% and the 2012 the lowest at 88%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2021 Toyota Prius Plus?

The average mileage recorded at MOT tests on the 2021 Toyota Prius Plus is 80,782 miles, which is well above the expected 22,200 miles for a 3-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.