Royal Alloy Gp 300 S Reliability, MOT Pass Rate & Common Faults
Free Royal Alloy Gp 300 S car check
Is the Royal Alloy Gp 300 S reliable? We analysed 1,091 real MOT tests across 407 vehicles to find out.
Got a specific Royal Alloy Gp 300 S? Enter the reg for a free check:
The Royal Alloy Gp 300 S is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Royal Alloy Gp 300 S.
Royal Alloy Gp 300 S Number Plates
Number plates registered to a Royal Alloy Gp 300 S. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Royal Alloy Gp 300 S MOT Pass Rate by Year
How likely is a Royal Alloy Gp 300 S to pass its MOT? Here's the pass rate for each registration year, newest first.
Royal Alloy Gp 300 S Common Faults & Problems
These are the most common serious faults found on Royal Alloy Gp 300 S models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Royal Alloy Gp 300 S Mileage — What's Normal?
How many miles does a typical Royal Alloy Gp 300 S owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Royal Alloy Gp 300 S MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Royal Alloy Gp 300 S year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2021 | 334 | 91.0% | 1,898 | 3,524 | 5,636 |
| 2020 | 713 | 93.5% | 2,243 | 3,944 | 6,170 |
How Long Does a Royal Alloy Gp 300 S Last?
Based on 407 Royal Alloy Gp 300 S vehicles on UK roads.
Royal Alloy Gp 300 S Mileage Distribution
Total mileage recorded across all Royal Alloy Gp 300 S MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Royal Alloy Gp 300 S
Based on MOT pass rates across all registration years with sufficient test data.
93.5% MOT pass rate from 713 tests
91.0% MOT pass rate from 334 tests
The best year to buy a used Royal Alloy Gp 300 S is 2020, which has the highest MOT pass rate at 93.5% across 713 tests. The 2021 model year has the lowest pass rate at 91.0% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Royal Alloy Gp 300 S Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Royal Alloy Gp 300 S THIS CAR | 92.5% | 1,091 | 3,811 mi | — yrs |
| Royal Alloy GT 125I | 86.2% | 4,333 | 2,819 mi | — yrs |
| Royal Alloy Gp 125 Ac | 88.6% | 1,253 | 2,811 mi | — yrs |
| Royal Alloy Gp 200 Lc | 90.5% | 988 | 2,947 mi | — yrs |
| Mercedes-benz C 220 AMG Line Prem D MHEV A | 89.5% | 894 | 31,084 mi | — yrs |
Compared to the Royal Alloy GT 125I (86.2% pass rate) and the Royal Alloy Gp 125 Ac (88.6% pass rate), the Royal Alloy Gp 300 S outperforms both on MOT reliability.
Found a Royal Alloy Gp 300 S you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Royal Alloy Gp 300 SShould you buy a used Royal Alloy Gp 300 S?
The Royal Alloy Gp 300 S has an overall MOT pass rate of 92.5% across 1,091 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth is below minimum requirements of 1.0mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Royal Alloy Gp 300 S with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Royal Alloy Gp 300 S owner drives around 666 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.