[svandamme]

90% of purchase price? To be honest, I'de expect to get more then 100% on the 2015/2017 price for my 07 Cayman 2.7

2.x liter 987 and 981 is not depreciating here, since the 718 with fart four came out, the 6 bangers have been going strong , especially here in Europe, especially the based models because here we are taxed on displacement.
The only 6 bangers, non turbo you can get would be 4.0 GTS/GT4 is taxed at somethign like 10K euros to register and 2.5 grand a year for road taxes

So any sub 3 liter 6 banger is very much hot property, they are the only affordable and good sounding Porsches anybody can buy