Is Porsche reliable?
72% of the 127 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 styles127
Porsches inspectedreal pre-purchase inspections69/100
Average conditionall cars we check: 61/100Based on 127 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
51%
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
24%
Share of inspected Porsches where each item was flagged.
How they score
Excellent 33%
Good 39%
Mediocre 20%
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
28 cars · 54% 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:
2020 Porsche Taycan · 37k mi — flagged: engine control module, high-voltage battery control unit, high-voltage power electronics. Inspected Oct 7.
2021 Porsche Cayenne · 56k mi — flagged: cracked or torn suspension bushings. Inspected Oct 5.
The bottom line
These cars can look sharp, but engine wear is the real story. Oil leaks show up on 51 percent of them, with cooling trouble right behind, so pop the hood first—those two items decide if you even start negotiating. Tires and worn rotors are next and are fair chips, not reasons to run. The catch is longevity: they typically fall below decent around 98,000 miles, so anything near that needs a bone-dry engine or you walk. A respray alone is no worse than the rest of the used market, so don't treat paint as a deal-killer by itself.
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 (51%), 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 127 inspections · updated Oct 11, 2026
