[techweenie]

The most desirable? The one you can actually own.

There are fans of every configuration of 911 and 912 from '73 and prior (later cars, too, of course). So find any platform you can that can be made to deliver what you want. You didn't say what that is: daily driver, weekend cruiser, track toy... many ways to enjoy a Porsche.

But anyone who has been around the block will tell you that if you buy a restored car, you are saving money and time. And anyone who has been around the hobby will tell you nearly everyone ignores that advice initially. We all tend to think we can find the one car that will be inexpensive to restore and we will stay under the edge of the 'value envelope.' Trust me, it takes a couple of decades of experience (or phenomenal luck) to do that.

At the moment, the 'rising tide' of value has protected all of us in our investments. Even if those investments have been made only for our own pleasure, with no idea of selling.

Five years from now, who knows?

Best result will be to ask about a specific car and get some knowledgeable input based on what you want it for between purchase and sale dates.