Lexus

Lexus Gs300 (2003)

382 real MOT outcomes analysed • 80.5% first-time pass rate

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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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

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.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
80.5%
UK average ~80%
Around average
Dangerous (ever)
33.3%
At least once in MOT history
Check this vehicle
Avg failures / car
3.61
Over 17.8 tests on record
High
Typical mileage
80k
Middle half: 61k–104k
For context
🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.
🔧 Expect consumable spend. An average of 22.5 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

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.

Watch for defects — worth knowing

What tends to go wrong

Across 382 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 78.4%
Offside Rear Tyre worn close to the legal limit · Nearside Rear Tyre worn close to the legal limit · Nearside Front Tyre worn close to the legal limit · …
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Brake wear 54.9%
Rear Brake pad(s) wearing thin · Front Brake pad(s) wearing thin · Rear Brake pad(s) less than 1.5 mm thick · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Other issues 26.5%
Under-trays fitted obscuring some underside components · Oil leak, but not excessive · Windscreen has damage to an area less than a 40mm circle outside zone 'A' · …

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.

UK

Before you buy a 2003 Lexus Gs300

Based on MOT data from 382 vehicles — here's what to check.

  • 📋 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.
  • 🔍 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 ClickMechanic
  • 📄 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 carVertical Get 20% off via CarHunch

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.

Silver 21.7%
3,023
Blue 19.9%
2,775
Green 13.3%
1,855
Black 12.5%
1,737
Red 11.4%
1,583
Grey 8.4%
1,172
Bronze 5.1%
717
White 4.5%
632
Gold 1.3%
187
Beige 0.9%
126
Purple 0.8%
117
Maroon 0.1%
19

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.

80,172
typical
61,297
low mileage
104,046
high mileage

Half of all 2003 Lexus Gs300 vehicles fall between 61,297 and 104,046 miles.

Is the mileage you're seeing normal?
Under 61,297 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
61,297–104,046 miles — normal for age. This is where most 2003 Lexus Gs300s sit.
Over 140,462 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

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).

306 109 2014 2025

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

17.8
Avg MOT tests per vehicle
3.61
Avg failures per vehicle
22.5
Avg advisories per vehicle
Other model years — Lexus Gs300: All Gs300 years → Which year to buy? →
1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2004 2005 2006 2007 2008 2009

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Compare with another model

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Watch for defects — worth knowing