Is Porsche reliable?
72% of the 124 Porsches we inspected scored 60/100 or higher, averaging 69/100 — they tend to be in noticeably better shape than the typical used car we inspect.
#21 of 24
Longevity rank#1 Tesla holds up to ~197k~98k
Trouble-free mileageacross all body styles124
Porsches inspectedreal pre-purchase inspections69/100
Average conditionall cars we check: 61/100Based on 124 used Porsches we inspected, they tend to be in noticeably better shape than the typical used car we inspect — average condition 69/100 vs 61 for all cars we check. Every number on this page comes from real pre-purchase inspections — cars people were about to buy and paid an independent inspector to go through point by point, engine to underbody, paint depth to error codes. Not owner surveys, not warranty statistics, not forum lore: what we actually found.
What we found
Most common faults
Oil leaks · Engine
52%
Tires condition & wear · Brakes and tires
35%
Low coolant / cooling system issues · Engine
31%
Worn brake rotors · Brakes and tires
28%
Active error codes · Electronic equipment
25%
Share of inspected Porsches where each item was flagged.
How they score
Excellent 33%
Good 39%
Mediocre 19%
Poor 9%
Hidden history
What the seller might not mention — how often we find it on Porsches.
77%had a repainted or replaced panelall cars: 75%
4%showed structural repairall cars: 4%
20%had fault codes recently clearedall cars: 24%
Compare with another brand:
Cross-shopping? Porsche vs BMW · Porsche vs Lexus · Porsche vs Mercedes
How long does a Porsche last?
Across every Porsche body style we've inspected — sedans, SUVs and anything else pooled together — the average one's condition dips below decent (a 55/100 score) around ~98k miles. It ranks Porsche #21 of 24 brands we have enough data to rate; the longest-lasting, Tesla, holds up to ~197k. Shopping a Porsche near that mileage? Expect more wear ahead — see which makes give the best odds at your budget.
Good cars by mileage
Good cars by age
Share of Porsches in good shape (scoring 60+/100) by mileage and by age when we inspected them (each dot ≥5 cars; rolled-back odometers excluded from the mileage curve). The dashed grey curve is all cars we check.
Porsche models we've inspected
Cayenne
27 cars · 52% good
Panamera
21 cars · profile soon
911
20 cars · profile soon
Macan
20 cars · profile soon
Cayman
15 cars · profile soon
Boxster
11 cars · profile soon
Recently inspected:
2014 Porsche Cayman · 55k mi — flagged: low coolant / cooling system issues, battery condition, heating. Inspected Sep 30.
2011 Porsche Cayenne · 131k mi — flagged: battery condition, fault codes recently cleared, sway bars. Inspected Sep 25.
The bottom line
The engine is the whole shopping story here. Oil leaks hit more than half these cars and cooling issues follow close behind, so get under the hood first and look for seepage and coolant problems before you talk money. Tires and worn rotors come next, so factor those in. Condition typically drops off around 98,000 miles, ranking near the bottom of brands, so hunt a lower-mile car with a dry engine bay, negotiate anything that is already seeping, and walk if the cooling system is neglected or the odometer is already past that drop-off.
FAQ
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What are the most common problems with a used Porsche?
Across the Porsches we inspected, the items we flag most often are oil leaks (52%), tires condition & wear (35%), low coolant / cooling system issues (31%).
Thinking of buying a Porsche? Get the exact car inspected before you pay.
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Based on 124 inspections · updated Oct 1, 2026
