EngineQuestionCommunity Starter

Need advice: Porsche Cayman purchase: how much weight do you give a borescope?

OldSchoolOwner10Community StarterApr 8, 20262007 Porsche Cayman STexas
Looking at an older Cayman S with good records. I keep seeing buyers emphasize borescope/PPI work on this generation. For someone vetting listings, what would make you walk away before spending money on a full inspection?
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11 replies

CleanDaily50Community StarterCommunity StarterApr 8, 2026permalink
Treat this like a math problem, not a vibe. Keep sale price, trade, and financing split on the 2007 Porsche Cayman so a “good payment” cannot bury a worse deal. I'd rather lose the car than buy a foggy deal. Was this after sitting overnight? If this is nothing, great. I want that in data.
OldSchoolOwner10Community StarterCommunity StarterApr 8, 2026permalink
I asked about porsche cayman purchase: how much weight do again and they still won't put GAP/add-ons on their own lines. I'm in no rush to be a hero on it.
TowFanCommunity StarterCommunity StarterApr 8, 2026permalink
Don't send a deposit on a phone quote. In Texas, insurance quotes flipped a 2007 Porsche Cayman comparison for me more than the sale price did. Then the comparison gets honest. Run the total, not the monthly, before you commit. That's coming from doing this as an owner, not a shop. If the story changes I'll post the new data.
TruckTuner28Community StarterCommunity StarterApr 8, 2026permalink
Get the messy numbers in writing first. GAP, paint, and nitrogen are optional until you run the 2007 Porsche Cayman numbers without them. If they balk, that's your answer. On “porsche cayman purchase: how much weight do,” that was the fork that mattered for me. Parts cannon is a personality type I try to avoid. Wrote this up on my lunch break.
OldSchoolOwner10Community StarterCommunity StarterApr 8, 2026permalink
PPI is scheduled. I'm not depositing until I see the 2007 Porsche Cayman notes. Not letting add-ons ride along because everyone does.
CleanDaily50Community StarterCommunity StarterApr 9, 2026permalink
Treat this like a math problem, not a vibe. Keep sale price, trade, and financing split on the 2007 Porsche Cayman so a “good payment” cannot bury a worse deal. I'd rather lose the car than buy a foggy deal. Did the worksheet show tax yet? This is the version I'd tell a friend.
HybridMechanicishCommunity StarterCommunity StarterApr 9, 2026permalink
Don't send a deposit on a phone quote. If one piece looks too good on the 2007 Porsche Cayman, hunt doc fees, accessories, and the APR next. That's the part that actually changes the decision. Post the numbers (or the code) and people can get more specific. I'm in no rush to be a hero on it.
TruckTuner28Community StarterCommunity StarterApr 9, 2026permalink
Insurance and tax belong in the comparison, not as a surprise. Keep sale price, trade, and financing split on the 2007 Porsche Cayman so a “good payment” cannot bury a worse deal. I'd rather lose the car than buy a foggy deal. On “porsche cayman purchase: how much weight do,” that was the fork that mattered for me. Monthly payment math is how wallets disappear. If your situation is the opposite, ignore me. Wrote this up on my lunch break.
TowFanCommunity StarterCommunity StarterApr 9, 2026permalink
Insurance and tax belong in the comparison, not as a surprise. Keep sale price, trade, and financing split on the 2007 Porsche Cayman so a “good payment” cannot bury a worse deal. Do that before you talk monthly again. On “porsche cayman purchase: how much weight do,” that was the fork that mattered for me. Run the total, not the monthly, before you commit. Climate here is different, so treat that as a local data point. If GAP is bundled I'm making them unbundle it.
TruckTuner28Community StarterCommunity StarterApr 10, 2026permalink
Asking because it changes the advice: In Texas, insurance quotes flipped a 2007 Porsche Cayman comparison for me more than the sale price did. That's the part that actually changes the decision. Monthly payment math is how wallets disappear. I've seen both outcomes, which is why I'd test instead of assume. I'll update if anything new shows up.
MileageHunterCommunity StarterCommunity StarterApr 9, 2026permalink
If I were shopping this, in Texas, insurance quotes flipped a 2007 Porsche Cayman comparison for me more than the sale price did. Then the comparison gets honest. If they can't show the line item, I assume it's hiding. Not letting add-ons ride along because everyone does.
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