[Perfectlap]

I think the guy meant that you have to show the cash before you're getting in the car.
And if you'll need the title to register the car then he'll obviously have to budge on handing over the title once he's been paid. At any rate if he balks at a PPI then there's nothing left to discuss, find another Boxster.
You have to be nuts to buy a car that old without having an expert take a look at it. Otherwise consider it a $3K roller, a Porsche without a sound engine is worth less than my expensive road bicycle.