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Porsche vs Subaru Reliability

Porsche leads on our inspections: 69/100 average condition vs 62/100 for Subaru, from 265 real pre-purchase inspections. The average car we check scores 61/100.

vs
Head to head
PorscheSubaru
Cars inspected129136
Average condition69/10062/100
In good shape (60+/100)72%55%
Holds up to (avg dips below decent)~98k mi~122k mi
Repainted or replaced panel77%70%
Structural repair found4%4%
Fault codes recently cleared20%34%

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
Porsche
Excellent 33% Good 39% Mediocre 20% Poor 9%
Subaru
Excellent 27% Good 28% Mediocre 26% Poor 18%
How long do they stay good?
Good cars by mileage
▬ Porsche▬ Subaru▬ all cars
0 25 50 75 100 Porsche, 0–20k mi: 97%, drawn from the nearby bands (13 cars in this band)Porsche, 20–40k mi: 89% in good shape (36 cars)Porsche, 40–60k mi: 86% in good shape (28 cars)Porsche, 60–80k mi: 67%, drawn from the nearby bands (17 cars in this band)Porsche, 80–100k mi: 49%, drawn from the nearby bands (12 cars in this band)Porsche, 100–120k mi: 39%, drawn from the nearby bands (13 cars in this band) Subaru, 20–40k mi: 96%, drawn from the nearby bands (14 cars in this band)Subaru, 40–60k mi: 86%, drawn from the nearby bands (19 cars in this band)Subaru, 60–80k mi: 78%, drawn from the nearby bands (19 cars in this band)Subaru, 80–100k mi: 62%, drawn from the nearby bands (16 cars in this band)Subaru, 100–120k mi: 50% in good shape (16 cars)Subaru, 120–140k mi: 32%, drawn from the nearby bands (18 cars in this band)Subaru, 140–160k mi: 15% in good shape (20 cars)Subaru, 160–180k mi: 13%, drawn from the nearby bands (6 cars in this band) 40k 80k 120k 160k 200k mileage when we inspected it
Good cars by age
▬ Porsche▬ Subaru▬ all cars
0 25 50 75 100 Porsche, 2 years old: 100% in good shape (6 cars)Porsche, 3 years old: 100%, drawn from the nearby bands (7 cars this age)Porsche, 4 years old: 95%, drawn from the nearby bands (13 cars this age)Porsche, 5 years old: 92%, drawn from the nearby bands (11 cars this age)Porsche, 6 years old: 89%, drawn from the nearby bands (6 cars this age)Porsche, 7 years old: 78%, drawn from the nearby bands (12 cars this age)Porsche, 8 years old: 62%, drawn from the nearby bands (10 cars this age)Porsche, 9 years old: 58%, drawn from the nearby bands (11 cars this age)Porsche, 10 years old: 63%, drawn from the nearby bands (7 cars this age)Porsche, 11 years old: 51%, drawn from the nearby bands (6 cars this age)Porsche, 12 years old: 41%, drawn from the nearby bands (8 cars this age) Subaru, 2 years old: 91%, drawn from the nearby bands (7 cars this age)Subaru, 3 years old: 91% in good shape (11 cars)Subaru, 4 years old: 85%, drawn from the nearby bands (7 cars this age)Subaru, 5 years old: 78%, drawn from the nearby bands (6 cars this age)Subaru, 6 years old: 71%, drawn from the nearby bands (10 cars this age)Subaru, 7 years old: 65%, drawn from the nearby bands (11 cars this age)Subaru, 8 years old: 60%, drawn from the nearby bands (19 cars this age)Subaru, 9 years old: 47%, drawn from the nearby bands (11 cars this age)Subaru, 10 years old: 50%, drawn from the nearby bands (11 cars this age)Subaru, 11 years old: 40%, drawn from the nearby bands (5 cars this age)Subaru, 12 years old: 30%, drawn from the nearby bands (7 cars this age)Subaru, 13 years old: 18%, drawn from the nearby bands (10 cars this age)Subaru, 14 years old: 21%, drawn from the nearby bands (5 cars this age)Subaru, 16 years old: 12%, drawn from the nearby bands (5 cars this age) 2y 4y 6y 8y 10y 12y 14y 16y vehicle age when we inspected it

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
Porsche
Oil leaks · Engine
50%
Tires condition & wear · Brakes and tires
36%
Low coolant / cooling system issues · Engine
30%
Worn brake rotors · Brakes and tires
27%
Active error codes · Electronic equipment
24%
Subaru
Oil leaks · Engine
64%
Cracked or torn suspension bushings · Suspension
35%
Low coolant / cooling system issues · Engine
26%
Tires condition & wear · Brakes and tires
22%
Active error codes · Electronic equipment
18%
FAQ
?
Which is more reliable, Porsche or Subaru?
Porsche leads on our inspections: 69/100 average condition vs 62/100 for Subaru, from 265 real pre-purchase inspections.
?
What are the most common problems with used Porsche vehicles and Subarus?
On Porsche vehicles we flag oil leaks (50%), tires condition & wear (36%), low coolant / cooling system issues (30%). On Subarus: oil leaks (64%), cracked or torn suspension bushings (35%), low coolant / cooling system issues (26%).
?
How many Porsche and Subaru vehicles have you inspected?
129 Porsche vehicles and 136 Subarus — 265 real pre-purchase inspections. Updated Oct 27, 2026.
?
How long do Porsche vehicles and Subarus stay in good shape?
In our data, the average Porsche dips below “decent” around ~98k mi; Subaru around ~122k mi. Individual cars vary — get the one you’re buying inspected.
Buying a used Porsche or Subaru? Get a pre-purchase inspection before you pay.
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Based on 265 inspections · updated Oct 27, 2026