Is Porsche reliable?
73% of the 121 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 ~185k~99k
Trouble-free mileageacross all body styles121
Porsches inspectedreal pre-purchase inspections69/100
Average conditionall cars we check: 61/100Based on 121 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
53%
Tires condition & wear · Brakes and tires
35%
Low coolant / cooling system issues · Engine
31%
Worn brake rotors · Brakes and tires
29%
Active error codes · Electronic equipment
26%
Share of inspected Porsches where each item was flagged.
How they score
Excellent 34%
Good 39%
Mediocre 19%
Poor 8%
Hidden history
What the seller might not mention — how often we find it on Porsches.
77%had a repainted or replaced panelall cars: 75%
3%showed structural repairall cars: 4%
19%had fault codes recently clearedall cars: 23%
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 ~99k miles. It ranks Porsche #21 of 24 brands we have enough data to rate; the longest-lasting, Tesla, holds up to ~185k. 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
26 cars · 53% good
Panamera
21 cars · profile soon
Macan
20 cars · profile soon
911
19 cars · profile soon
Cayman
14 cars · profile soon
Boxster
11 cars · profile soon
Recently inspected:
2014 Porsche Panamera 4s · 83k mi — flagged: oil leaks, fault codes recently cleared, fuel trim out of range. Inspected Aug 11.
2014 Porsche Boxster · 35k mi — flagged: low coolant / cooling system issues, worn brake rotors, tires condition & wear. Inspected Jul 30.
The bottom line
Porsche ownership still delivers strong overall condition, yet the pattern is clear: oil leaks hit over half these cars and cooling faults pile on right behind, so the engine bay is where deals get made or broken. Longevity sits near the bottom of the pack, with cars typically dropping off around 99,000 miles—treat anything north of that as higher-risk. Start every look underneath for fresh seepage and coolant residue, then move to rotors and tires; use active leaks or codes to negotiate hard or walk. Skip the badge romance and budget for seals and fluid work before you fall for the drive.
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 (53%), 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 121 inspections · updated Aug 12, 2026
