Lexus IS300 (2015)

Estimated running costs and MOT pass rates from 45 MOT tests in 2024.

Annual Cost

£2,658

£222/month

MOT Pass Rate

93%

Excellent

Road Tax

£445

Estimated/year

Est. Insurance

Grp 25-38

2494cc Hybrid

Great Choice

93% pass rate, £2,658/year to run. 11 points above average.

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Hybrid2494cc11 years old45 tests109k miles avg

Annual Running Costs

Fuel (Hybrid, 2494cc)

~30 mpg (petrol-engine estimate; hybrids usually use less)

£1,958

Road Tax

Estimated CO2 band

£445

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£2,658

Per month£222/mo

Per week£51/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.

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 Lexus brand average of 87%.

93% of MOT tests on Lexus IS300s from 2015 ended in a pass in 2024, when they were about 9 years old. That's based on 45 tests across the UK, retests included. The average mileage recorded at those tests was 108,740 miles.

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How Does It Compare?

Rank among 2015 models98th of 515(top 20%)

Rank among Lexus models81st of 298(top half)

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

vs 2015 models average+10%(83% avg)

vs Lexus average+6%(87% avg)

Mileage Analysis

108,740

Average miles

66,600

Expected for age

The average 2015 Lexus IS300 had 108,740 miles on the clock at its 2024 MOT, which is well above the expected 66,600 miles for a 9-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 2005 model has the highest MOT pass rate at 90%, while the 2001 model has the lowest at 73%. The 2015 scores 93%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Lexus IS300 by Year

Year	Pass Rate	Tests	Avg Mileage
2018	100%	31	33,082 mi
2017	83%	47	44,028 mi
2016	98%	54	83,188 mi
2015	93%	45	108,740 mi
2014	75%	57	105,616 mi
2013	72%	32	165,163 mi
2005	90%	105	108,662 mi
2004	80%	265	111,202 mi
2003	80%	293	114,003 mi
2002	84%	361	121,943 mi
2001	73%	125	126,707 mi

Similar Cars to Consider

Mitsubishi Outlander

2015 · 1998cc Hybrid

£2,361/year

83%

-10%

BMW X5

2016 · 2000cc Hybrid

£2,211/year

92%

-1%

Lexus NX

2017 · 2494cc Hybrid

£2,413/year

94%

+1%

Kia Optima

2017 · 1999cc Hybrid

£2,236/year

87%

-6%

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About the 2015 Lexus IS300

The 2015 Lexus IS300 is a premium car. Our records list a 2494cc hybrid engine, though engines vary between versions. 45 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It ranks in the top 20% of all 2015 models for MOT pass rate.

With an average of 108,740 miles recorded at its 2024 MOT tests, Lexus IS300 owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.

2015 Lexus IS300 Fuel Costs

The 2494cc hybrid engine offers a reasonable balance between performance and economy. Our estimate uses around 30 mpg, the figure for a petrol engine of this size, which works out to roughly £1,958 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 2015 Lexus IS300?

Total estimated annual running cost is £2,658 (£222/month), broken down as £1,958 fuel, £445 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.

Lexus IS300 Reliability Trend

Newer Lexus IS300s pass their MOT more often than older ones, by 5 percentage points on average, which is mostly down to age and wear.

Buying a Used 2015 Lexus IS300

At 11 years old, the Lexus IS300 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2005 model has the highest pass rate at 90%. Note: with only 45 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

Watch out

After 11 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

Medium 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.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Clutch Wear

Watch out

With an average of 109k 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 2015 Lexus IS300 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
Lexus IS300(2015)	93%	£1,958	£445	Grp 25-38	£2,658
Mitsubishi Outlander(2015)	83%	£1,631	£325	Grp 18-32	£2,361-£297
BMW X5(2016)	92%	£1,631	£325	Grp 18-32	£2,211-£447
Lexus NX(2017)	94%	£1,958	£200	Grp 25-38	£2,413-£245
Kia Optima(2017)	87%	£1,631	£200	Grp 18-32	£2,236-£422

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 2015 Lexus IS300

Is the 2015 Lexus IS300 reliable?

Excellent reliability. Very few MOT failures. 93% of MOT tests on 2015 Lexus IS300s ended in a pass, from 45 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 2015 Lexus IS300 cost to run?

Our estimate is £2,658 a year (£222 a month): £1,958 fuel, £445 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 2015 Lexus IS300?

93% of 45 MOT tests on the 2015 Lexus IS300 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 98th of 515 models first registered in 2015 (top 20%).

Which year Lexus IS300 has the best MOT pass rate?

Of the years with at least 100 tests, the 2005 Lexus IS300 has the highest MOT pass rate at 90% and the 2001 the lowest at 73%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2015 Lexus IS300?

The average mileage recorded at MOT tests on the 2015 Lexus IS300 is 108,740 miles, which is well above the expected 66,600 miles for a 9-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.