Lexus Gs300 (2003)
2003 Lexus Gs300
CarHunch analysed 382 real MOT records for the 2003 Lexus Gs300.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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Moderate sample. 382 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.
The 2003 Lexus GS300 matches the UK average first-time pass rate at 80.5%, which is reassuring—but one in three owners have encountered a dangerous defect at some point, making this a genuine buyer concern. The petrol engine variant (380 of 382 cars) performs predictably at 80.6% pass rate, so fuel type isn't a differentiator here.
These GS300s are running at realistic mileage for their age, averaging just over 83,000 miles, yet they're racking up an average of 3.61 failures and 22.5 advisories per test, indicating recurring wear items rather than catastrophic failures. If you're considering one, get a pre-purchase inspection focused on the suspension and brake components—that advisory count suggests they're the common culprits—and factor in regular maintenance costs from a specialist familiar with Japanese luxury cars.
The 2003 Lexus Gs300 has a decent first-time pass rate (80.5%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.
These stats describe 382 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.
What tends to go wrong
Across 382 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 2003.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 382 Lexus Gs300 cars.
Before you buy a 2003 Lexus Gs300
Based on MOT data from 382 vehicles — here's what to check.
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Check the full MOT history.
33.3% of these vehicles have had a dangerous defect recorded -
recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle. -
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Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price.
Inspection
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Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically.
History
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (98%) | 374 | 80.6% | 3.61 |
Colour Breakdown
Based on 13,943 Lexus Gs300 vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2003 Lexus Gs300 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2003 Lexus Gs300 vehicles fall between 61,297 and 104,046 miles.
2003 Lexus Gs300 — Still on the Road
Numbers are thinning — 36% of 2003 Lexus Gs300s are still active.
Numbers are declining — 109 vehicles still getting MOTs in 2025 (36% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.
MOT History Averages
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Compare with another model
See how the 2003 Lexus Gs300 stacks up against a rival.