Which is more reliable, GMC or Mini?
In our inspections, GMC’s average condition stays above the “decent” threshold to around 107k miles. We don’t have that mileage read for Mini yet.
In our inspections, GMC’s average condition stays above the “decent” threshold to around 107k miles. We don’t have that mileage read for Mini yet.
Based on 74 GMCs and 25 Minis. “Decent” means a condition score of 55/100.
Head to head
| GMC | Mini | |
|---|---|---|
| Cars inspected | 74 | 25 |
| Average condition | 57/100 | 63/100 |
| In good shape (60+/100) | 50% | 64% |
| Repainted or replaced panel | 73% | 60% |
| Structural repair found | 4% | 0% |
| Fault codes recently cleared | 30% | 36% |
Green = the better number of the pair. Condition reflects the mix of cars that came to us — age, price, model — so treat small gaps as a tie.
How they score
How long do they stay good?
Good cars by mileage
▬ GMC▬ Mini▬ all cars
Good cars by age
▬ GMC▬ Mini▬ all cars
Share in good shape (scoring 60+/100) by mileage and by age when we inspected them (each dot ≥5 cars; a band under 20 cars follows the nearby bands, so a run above the all-cars line stays above it, and a band of 20 or more uses the rate we measured; where a band has too few cars, the line follows the trend between the bands on either side; rolled-back odometers excluded from the mileage curve). Dashed grey = all cars we check. Not enough Mini data at this granularity yet.
Most common faults
Oil leaks · Engine
46%
Active error codes · Electronic equipment
42%
Fuel trim out of range · Engine
38%
Tires condition & wear · Brakes and tires
38%
Leaking or worn shock absorbers · Suspension
24%
Tires condition & wear · Brakes and tires
68%
Oil leaks · Engine
64%
Active error codes · Electronic equipment
28%
Footwell module · Equipment
28%
Dirty or low engine oil · Engine
28%
FAQ
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What are the most common problems with used GMCs and Minis?
On GMCs we flag oil leaks (46%), active error codes (42%), fuel trim out of range (38%). On Minis: tires condition & wear (68%), oil leaks (64%), active error codes (28%).
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How many GMC and Mini vehicles have you inspected?
74 GMCs and 25 Minis — 99 real pre-purchase inspections. Updated Nov 13, 2026.
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Should I still get a pre-purchase inspection?
Yes. Badge averages don't sort the good car from the tired one. We still find repainted panels on 73% of GMCs and 60% of Minis, and recently cleared fault codes on 30% / 36%.
Buying a used GMC or Mini? Get a pre-purchase inspection before you pay.
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Based on 99 inspections · updated Nov 13, 2026
