Which is more reliable, GMC or Infiniti?
Infiniti leads on our inspections: 61/100 average condition vs 56/100 for GMC, from 165 real pre-purchase inspections.
Infiniti leads on our inspections: 61/100 average condition vs 56/100 for GMC, from 165 real pre-purchase inspections. The average car we check scores 61/100.
Head to head
| GMC | Infiniti | |
|---|---|---|
| Cars inspected | 71 | 94 |
| Average condition | 56/100 | 61/100 |
| In good shape (60+/100) | 48% | 55% |
| Holds up to (avg dips below decent) | ~107k mi | ~121k mi |
| Repainted or replaced panel | 75% | 82% |
| Structural repair found | 4% | 7% |
| Fault codes recently cleared | 30% | 27% |
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▬ Infiniti▬ all cars
Good cars by age
▬ GMC▬ Infiniti▬ 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.
Most common faults
Oil leaks · Engine
48%
Active error codes · Electronic equipment
44%
Tires condition & wear · Brakes and tires
39%
Fuel trim out of range · Engine
39%
Leaking or worn shock absorbers · Suspension
25%
Oil leaks · Engine
57%
Tires condition & wear · Brakes and tires
49%
Active error codes · Electronic equipment
35%
Fluid leaks · Steering (hydraulic power)
35%
Low coolant / cooling system issues · Engine
31%
FAQ
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What are the most common problems with used GMCs and Infinitis?
On GMCs we flag oil leaks (48%), active error codes (44%), tires condition & wear (39%). On Infinitis: oil leaks (57%), tires condition & wear (49%), active error codes (35%).
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How many GMC and Infiniti vehicles have you inspected?
71 GMCs and 94 Infinitis — 165 real pre-purchase inspections. Updated Oct 27, 2026.
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How long do GMCs and Infinitis stay in good shape?
In our data, the average GMC dips below “decent” around ~107k mi; Infiniti around ~121k mi. Individual cars vary — get the one you’re buying inspected.
Buying a used GMC or Infiniti? Get a pre-purchase inspection before you pay.
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Based on 165 inspections · updated Oct 27, 2026
