I'm on the fence about my '77 3.0 Carrera. I'm thinking about selling it and finding a later model C4. My question would be how do I determine value of the car. It is pretty rare in the US since they never imported them. It is a blast to drive, I'm just thinking. The car is GP White on White, sport seats, fog lights, sunroof(needs new cables). The paint would be a 7-8 out of 10. It looks good from 10 feet, but once you get closer there are some flaws. Updates include
Rebuilt original 915 with all synchros, dog teeth, etc...
Engine rebuilt 30k miles ago with all updates (tensioners, pop-off, turbo valve covers, 964 cam)
New fuel pump and accumulator
All shift bushings and clutch cable
Starter
Turbo tie rods
Stainless brake lines and ATE fluid
16x7 and 16x8 Fuchs
Only interior flaw is a worn driver seat
COA for car listing options
Any input would be appreciated
Here are some pictures from when I first bought the car.