Ford Focus ST-Line Edition MHEV (2021)

Estimated running costs and MOT pass rates from 3,296 MOT tests in 2024.

Annual Cost

£1,630

£136/month

MOT Pass Rate

93%

Excellent

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 1-8

999cc Petrol

Great Choice

93% pass rate, £1,630/year to run. 11 points above average.

Buying this car? Check for finance, write-offs & theft

£4.99

Check a specific Ford Focus ST-Line Edition MHEV

Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.

Petrol999cc5 years old3,296 tests26k miles avg

Annual Running Costs

Fuel (Petrol, 999cc)

~50 mpg

£1,175

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,630

Per month£136/mo

Per week£31/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

93% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 11 points above the average of 82% across all models in our data. It also outperforms the Ford brand average of 85%.

93% of MOT tests on Ford Focus ST-Line Edition MHEVs from 2021 ended in a pass in 2024, when they were about 3 years old. That's based on 3,296 tests across the UK, retests included. The average mileage recorded at those tests was 26,392 miles.

Got a Ford Focus ST-Line Edition MHEV you're looking at?

Enter the reg plate to check its specific MOT history, mileage, and health score.

How Does It Compare?

Rank among 2021 models1442nd of 3,336(top half)

Rank among Ford models275th of 1,136(top 25%)

vs average of all models+11%(82% avg)

vs 2021 models average+1%(92% avg)

vs Ford average+8%(85% avg)

Mileage Analysis

26,392

Average miles

22,200

Expected for age

The average 2021 Ford Focus ST-Line Edition MHEV had 26,392 miles on the clock at its 2024 MOT, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.

Looking at a specific Ford Focus ST-Line Edition MHEV?

Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.

Best Year to Buy?

Of the years with at least 100 tests, the 2020 model has the highest MOT pass rate at 94%, while the 2021 model has the lowest at 93%. Consider a different year if reliability is a priority. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Ford Focus ST-Line Edition MHEV by Year

Year	Pass Rate	Tests	Avg Mileage
2022	93%	250	24,794 mi
2021	93%	3,296	26,392 mi
2020	94%	1,788	30,726 mi

Similar Cars to Consider

Ford Fiesta

2019 · 998cc Petrol

£1,630/year

91%

-2%

Volkswagen Golf

2019 · 1498cc Petrol

£1,853/year

92%

-1%

Vauxhall Corsa

2019 · 1398cc Petrol

£2,003/year

88%

-5%

MINI Cooper

2019 · 1499cc Petrol

£1,853/year

92%

-1%

Check a Specific Ford Focus ST-Line Edition MHEV

Enter a reg plate to get the full MOT history, health score, and mileage verification.

Upgrade to Premium (£4.99) for stolen, finance, and write-off checks.

About the 2021 Ford Focus ST-Line Edition MHEV

The 2021 Ford Focus ST-Line Edition MHEV is a city car. Our records list a 999cc petrol engine, though engines vary between versions. 3,296 MOT tests were recorded on this model in 2024, making it a reasonably common sight on UK roads. Among all models from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.

With an average of 26,392 miles recorded at its 2024 MOT tests, Ford Focus ST-Line Edition MHEV owners drive about as much as the UK average.

2021 Ford Focus ST-Line Edition MHEV Fuel Costs

The modest 999cc petrol engine keeps fuel costs low, which is a real advantage for a city car. Expect around 50 mpg in mixed driving, which works out to roughly £1,175 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).

What does it cost to own a 2021 Ford Focus ST-Line Edition MHEV?

Total estimated annual running cost is £1,630 (£136/month), broken down as £1,175 fuel, £200 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2021 Ford Focus ST-Line Edition MHEV

At 5 years old, the Ford Focus ST-Line Edition MHEV offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.

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.

Coil Pack Failure

Medium risk

Smaller petrol engines are prone to ignition coil failures, causing misfires and rough running. Replacement is £50-£150 per coil.

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 Ford Focus ST-Line Edition MHEV 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
Ford Focus ST-Line Edition MHEV(2021)	93%	£1,175	£200	Grp 1-8	£1,630
Ford Fiesta(2019)	91%	£1,175	£200	Grp 1-8	£1,630same
Volkswagen Golf(2019)	92%	£1,398	£200	Grp 12-25	£1,853+£223
Vauxhall Corsa(2019)	88%	£1,398	£200	Grp 8-20	£2,003+£373
MINI Cooper(2019)	92%	£1,398	£200	Grp 12-25	£1,853+£223

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 Ford Focus ST-Line Edition MHEV

Is the 2021 Ford Focus ST-Line Edition MHEV reliable?

Excellent reliability. Very few MOT failures. 93% of MOT tests on 2021 Ford Focus ST-Line Edition MHEVs ended in a pass, from 3,296 tests (DVSA MOT data for tests in 2024, retests included). That's 11 points above the average of 82% across all models in the same data.

How much does a 2021 Ford Focus ST-Line Edition MHEV cost to run?

Our estimate is £1,630 a year (£136 a month): £1,175 fuel, £200 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2021 Ford Focus ST-Line Edition MHEV?

93% of 3,296 MOT tests on the 2021 Ford Focus ST-Line Edition MHEV ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 1442nd of 3,336 models first registered in 2021 (top half).

Which year Ford Focus ST-Line Edition MHEV has the best MOT pass rate?

Of the years with at least 100 tests, the 2020 Ford Focus ST-Line Edition MHEV has the highest MOT pass rate at 94% and the 2021 the lowest at 93%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2021 Ford Focus ST-Line Edition MHEV?

The average mileage recorded at MOT tests on the 2021 Ford Focus ST-Line Edition MHEV is 26,392 miles, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.