SUZUKI SWIFT SPORT BOOSTERJET MHEV (2021)
Running costs, reliability data, and common problems from 1,003 real MOT tests.
Annual Cost
£1,587
£132/month
MOT Pass Rate
95%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 8-20
1373cc Petrol
Great Choice
95% pass rate, £1587/year to run. 13 points above average.
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Annual Running Costs
~42 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 13 points above the national average of 82%. It also outperforms the SUZUKI brand average of 82%.
At 5 years old, 95% of SUZUKI SWIFT SPORT BOOSTERJET MHEVs from 2021 passed their MOT first time in 2026. That's based on 1,003 tests across the UK. The average mileage at this age is 19,921 miles.
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How Does It Compare?
Mileage Analysis
19,921
Average miles
37,000
Expected for age
The average 2021 SUZUKI SWIFT SPORT BOOSTERJET MHEV has 19,921 miles on the clock, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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SUZUKI SWIFT SPORT BOOSTERJET MHEV by Year
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About the 2021 SUZUKI SWIFT SPORT BOOSTERJET MHEV
The 2021 SUZUKI SWIFT SPORT BOOSTERJET MHEV is a small family car with a 1373cc petrol engine. 1,003 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. It ranks in the top 24% of all 2021 cars for reliability.
With an average of 19,921 miles at 5 years old, SUZUKI SWIFT SPORT BOOSTERJET MHEV owners tend to use this car less than the typical driver.
2021 SUZUKI SWIFT SPORT BOOSTERJET MHEV Fuel Costs
The 1373cc petrol engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2021 SUZUKI SWIFT SPORT BOOSTERJET MHEV?
Total estimated annual running cost is £1,587 (£132/month), broken down as £1137 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 95% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
SUZUKI SWIFT SPORT BOOSTERJET MHEV Reliability Trend
The SUZUKI SWIFT SPORT BOOSTERJET MHEV has maintained consistent MOT pass rates across model years, varying by only 0 percentage points.
Buying a Used 2021 SUZUKI SWIFT SPORT BOOSTERJET MHEV
At 5 years old, the SUZUKI SWIFT SPORT BOOSTERJET 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
Based on the 2021 SUZUKI SWIFT SPORT BOOSTERJET MHEV's fuel type, age, and engine size, these are the most likely problem areas to check.
Service History
Low riskAlways 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 SUZUKI SWIFT SPORT BOOSTERJET MHEV stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| SUZUKI SWIFT SPORT BOOSTERJET MHEV(2021) | 95% | £1137 | £195 | Grp 8-20 | £1587 |
| TOYOTA PRIUS(2019) | 94% | £1327 | £190 | Grp 18-32 | £1772+£185 |
| TOYOTA YARIS DESIGN HEV CVT(2021) | 96% | £1137 | £190 | Grp 12-25 | £1582-£5 |
| TOYOTA COROLLA ICON TECH HEV CVT(2020) | 93% | £1327 | £190 | Grp 18-32 | £1772+£185 |
| TOYOTA YARIS ICON HEV CVT(2021) | 95% | £1137 | £190 | Grp 12-25 | £1582-£5 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Suzuki Models
Explore other Suzuki cars or similar models in the same category.
SUZUKI VITARA
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SUZUKI SWIFT
2015 · 1586cc Petrol
TOYOTA PRIUS
2019 · 1797cc Petrol
TOYOTA YARIS DESIGN HEV CVT
2021 · 1490cc Petrol
TOYOTA COROLLA ICON TECH HEV CVT
2020 · 1798cc Petrol
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