Is Porsche reliable?
72% of the 128 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 ~182k~98k
Trouble-free mileageacross all body styles128
Porsches inspectedreal pre-purchase inspections69/100
Average conditionall cars we check: 61/100Based on 128 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
30%
Worn brake rotors · Brakes and tires
27%
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: 74%
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 ~182k. 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; 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). 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 · 59k mi — flagged: tires condition & wear, electronic stability program. Inspected Oct 14.
2020 Porsche Taycan · 37k mi — flagged: engine control module, high-voltage battery control unit, high-voltage power electronics. Inspected Oct 7.
The bottom line
These cars typically slip below decent around 98,000 miles, and longevity sits near the bottom of the ranks. The risk that should decide the buy is the engine: oil leaks show up on about half of them, cooling trouble follows, and tires, rotors, and active codes are common too. Repaints are ordinary and structural repairs are not elevated, so do not walk for paint alone. On the car in front of you, check oil leaks and coolant level first, then scan for codes. If the miles are already near that point and the engine is leaking or coolant is low, negotiate hard or leave. Prefer lower miles.
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 (30%).
Thinking of buying a Porsche? Get the exact car inspected before you pay.
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Based on 128 inspections · updated Oct 22, 2026
