LEXUS IS (2021)
Running costs, common problems, and reliability data based on 79 real MOT tests in 2024.
MOT Pass Rate
89%
Total Tests (2024)
79
Avg Mileage
38,425 mi
Est. Annual Cost
£2,187
Is the 2021 LEXUS IS reliable?
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.
At 3 years old, 89% of LEXUS ISs from 2021 passed their MOT first time in 2024. That's based on 79 tests across the UK. The average mileage at this age is 38,425 miles.
How does the 2021 LEXUS IS compare?
Mileage Analysis
The average 2021 LEXUS IS has 38,425 miles on the clock, 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.
Best year to buy a LEXUS IS?
The most reliable year is the 2020 model with a 94% MOT pass rate, while the 2013 model has the lowest at 87%. The 2021 sits between the two at 89%.
How much does a 2021 LEXUS IS cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
LEXUS IS by Year
Checking a specific LEXUS IS?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 LEXUS IS
The 2021 LEXUS IS is a premium with a 2494cc hybrid engine. 79 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 82% of 2021 cars for MOT pass rates.
With an average of 38,425 miles at 3 years old, LEXUS IS owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.
2021 LEXUS IS Fuel Costs
The 2494cc hybrid engine offers a reasonable balance between performance and economy. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current hybrid prices of 142p per litre (based on 7,400 miles per year). As a hybrid, real-world fuel costs will vary significantly depending on how much electric-only driving you do.
What does it cost to own a 2021 LEXUS IS?
Total estimated annual running cost is £2,187 (£182/month), broken down as £1592 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.
LEXUS IS Reliability Trend
The LEXUS IS has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.
Buying a Used 2021 LEXUS IS
At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet. If you're flexible on year, the 2020 model has the highest pass rate at 94%. Note: with only 79 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2021 LEXUS IS
If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable hybrid cars with similar engines:
- LAND ROVER RANGE ROVER SPORT (2019) 94% pass rate (+5%) from 33,069 tests
- TOYOTA RAV4 (2020) 95% pass rate (+6%) from 21,063 tests
- LAND ROVER RANGE ROVER (2019) 94% pass rate (+5%) from 15,073 tests
- BMW 330E M SPORT AUTO (2021) 88% pass rate (-1%) from 12,306 tests