Lexus GS450H (2008)

Estimated running costs and MOT pass rates from 637 MOT tests in 2024.

Annual Cost

£3,153

£263/month

MOT Pass Rate

85%

Good

Road Tax

£790

Estimated/year

Est. Insurance

Grp 35-50

3456cc Hybrid

Solid Option

85% pass rate, £3,153/year to run. Close to the average across all models.

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Hybrid3456cc18 years old637 tests112k miles avg

Annual Running Costs

Fuel (Hybrid, 3456cc)

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

£1,958

Road Tax

Estimated CO2 band

£790

MOT Test

£55

Predicted Repairs

£350

Total per year£3,153

Per month£263/mo

Per week£61/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

85% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the average of 82% across all models in our data.

85% of MOT tests on Lexus GS450Hs from 2008 ended in a pass in 2024, when they were about 16 years old. That's based on 637 tests across the UK, retests included. The average mileage recorded at those tests was 111,524 miles.

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How Does It Compare?

Rank among 2008 models113th of 566(top 20%)

Rank among Lexus models172nd of 298(bottom half)

vs average of all models+3%(82% avg)

vs 2008 models average+12%(73% avg)

vs Lexus average-2%(87% avg)

Mileage Analysis

111,524

Average miles

118,400

Expected for age

The average 2008 Lexus GS450H had 111,524 miles on the clock at its 2024 MOT, which is in line with the expected 118,400 miles for a 16-year-old car, suggesting normal everyday use.

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Lexus GS450H by Year

Year	Pass Rate	Tests	Avg Mileage
2012	93%	41	111,016 mi
2010	82%	136	100,907 mi
2009	84%	387	105,585 mi
2008	85%	637	111,524 mi
2007	84%	694	117,310 mi
2006	79%	573	120,641 mi

Similar Cars to Consider

Lexus RX450H

2010 · 3450cc Hybrid

£3,153/year

86%

+1%

Lexus RX400H

2007 · 3311cc Hybrid

£3,153/year

80%

-5%

Toyota Alphard

2007 · 2995cc Hybrid

£2,808/year

86%

+1%

Lexus RX400 H SE CVT

2007 · 3311cc Hybrid

£3,303/year

77%

-8%

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About the 2008 Lexus GS450H

The 2008 Lexus GS450H is a premium performance car. Our records list a 3456cc hybrid engine, though engines vary between versions. 637 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. It ranks in the top 20% of all 2008 models for MOT pass rate.

With an average of 111,524 miles recorded at its 2024 MOT tests, Lexus GS450H owners drive about as much as the UK average.

2008 Lexus GS450H Fuel Costs

The 3456cc hybrid engine is on the larger side, so fuel won't be this car's strong point. 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 2008 Lexus GS450H?

Total estimated annual running cost is £3,153 (£263/month), broken down as £1,958 fuel, £790 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 85% pass rate. Keeping on top of servicing will help avoid surprises.

Lexus GS450H Reliability Trend

The Lexus GS450H has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.

Buying a Used 2008 Lexus GS450H

At 18 years old, the Lexus GS450H 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.

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 18 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 112k 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 2008 Lexus GS450H 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 GS450H(2008)	85%	£1,958	£790	Grp 35-50	£3,153
Lexus RX450H(2010)	86%	£1,958	£790	Grp 35-50	£3,153same
Lexus RX400H(2007)	80%	£1,958	£790	Grp 35-50	£3,153same
Toyota Alphard(2007)	86%	£1,958	£445	Grp 30-42	£2,808-£345
Lexus RX400 H SE CVT(2007)	77%	£1,958	£790	Grp 35-50	£3,303+£150

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 2008 Lexus GS450H

Is the 2008 Lexus GS450H reliable?

Good reliability. Occasional issues but generally solid. 85% of MOT tests on 2008 Lexus GS450Hs ended in a pass, from 637 tests (DVSA MOT data for tests in 2024, retests included). That's 3 points above the average of 82% across all models in the same data.

How much does a 2008 Lexus GS450H cost to run?

Our estimate is £3,153 a year (£263 a month): £1,958 fuel, £790 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2008 Lexus GS450H?

85% of 637 MOT tests on the 2008 Lexus GS450H ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 113th of 566 models first registered in 2008 (top 20%).

Which year Lexus GS450H has the best MOT pass rate?

Of the years with at least 100 tests, the 2008 Lexus GS450H has the highest MOT pass rate at 85% and the 2006 the lowest at 79%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2008 Lexus GS450H?

The average mileage recorded at MOT tests on the 2008 Lexus GS450H is 111,524 miles, which is in line with the expected 118,400 miles for a 16-year-old car, suggesting normal everyday use.