Lexus IS300 (2018)

Estimated running costs and MOT pass rates from 31 MOT tests in 2024.

Annual Cost

£2,413

£201/month

MOT Pass Rate

100%

Excellent

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 25-38

2497cc Hybrid

Great Choice

100% pass rate, £2,413/year to run. 18 points above average.

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Hybrid2497cc8 years old31 tests33k miles avg

Annual Running Costs

Fuel (Hybrid, 2497cc)

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

£1,958

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£2,413

Per month£201/mo

Per week£46/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

100% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 18 points above the average of 82% across all models in our data. It also outperforms the Lexus brand average of 87%.

100% of MOT tests on Lexus IS300s from 2018 ended in a pass in 2024, when they were about 6 years old. That's based on 31 tests across the UK, retests included. The average mileage recorded at those tests was 33,082 miles.

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How Does It Compare?

Rank among 2018 models22nd of 607(top 4%)

Rank among Lexus models4th of 298(top 2%)

vs average of all models+18%(82% avg)

vs 2018 models average+11%(89% avg)

vs Lexus average+13%(87% avg)

Mileage Analysis

33,082

Average miles

44,400

Expected for age

The average 2018 Lexus IS300 had 33,082 miles on the clock at its 2024 MOT, which is below the expected 44,400 miles for a 6-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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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 2018 scores 100%. 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

Land Rover Range Rover Sport

2019 · 1997cc Hybrid

£2,086/year

94%

-6%

Toyota RAV4

2020 · 2500cc Hybrid

£2,413/year

95%

-5%

Mitsubishi Outlander

2016 · 1998cc Hybrid

£2,361/year

86%

-14%

Land Rover Range Rover

2018 · 1997cc Hybrid

£2,086/year

93%

-7%

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About the 2018 Lexus IS300

The 2018 Lexus IS300 is a premium car. Our records list a 2497cc hybrid engine, though engines vary between versions. 31 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It ranks in the top 4% of all 2018 models for MOT pass rate.

With an average of 33,082 miles recorded at its 2024 MOT tests, Lexus IS300 owners tend to use this car less than the typical driver.

2018 Lexus IS300 Fuel Costs

The 2497cc 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 2018 Lexus IS300?

Total estimated annual running cost is £2,413 (£201/month), broken down as £1,958 fuel, £200 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 100% 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 2018 Lexus IS300

At 8 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2005 model has the highest pass rate at 90%. Note: with only 31 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 8 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.

Suspension Wear

Medium risk

Shock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.

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 2018 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(2018)	100%	£1,958	£200	Grp 25-38	£2,413
Land Rover Range Rover Sport(2019)	94%	£1,631	£200	Grp 18-32	£2,086-£327
Toyota RAV4(2020)	95%	£1,958	£200	Grp 25-38	£2,413same
Mitsubishi Outlander(2016)	86%	£1,631	£325	Grp 18-32	£2,361-£52
Land Rover Range Rover(2018)	93%	£1,631	£200	Grp 18-32	£2,086-£327

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 2018 Lexus IS300

Is the 2018 Lexus IS300 reliable?

Excellent reliability. Very few MOT failures. 100% of MOT tests on 2018 Lexus IS300s ended in a pass, from 31 tests (DVSA MOT data for tests in 2024, retests included). That's 18 points above the average of 82% across all models in the same data.

How much does a 2018 Lexus IS300 cost to run?

Our estimate is £2,413 a year (£201 a month): £1,958 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 2018 Lexus IS300?

100% of 31 MOT tests on the 2018 Lexus IS300 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 22nd of 607 models first registered in 2018 (top 4%).

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 2018 Lexus IS300?

The average mileage recorded at MOT tests on the 2018 Lexus IS300 is 33,082 miles, which is below the expected 44,400 miles for a 6-year-old car. This suggests lighter use than average, which generally means less wear on major components.