1- It's a 1.8, which makes it not the most desirable model (2.0 seems to be the preference.) values is hard to determine from pictures. The hell hole is not shown. There is rust on the firewall from the back pad, and in the trunk. If the rust is not too bad. Between $3500 and 15k. There has been some work here, but the devil is in the details.
If you are truly looking for an investment car, y
Look to spend 10-25k, for a well sorted car. There should be documentation of the rust or repair. To give you an idea I have a car that was inexpensive and have 6k + in repairs and it's not even back together yet.
http://www.914world.com/bbs2/index.php?sho...ks+project+caryI'll be well into the 15 range when completely restored, and I've done it on a budget.
The example has promise, but really need to get a knowledgeable person to look at the issues.
2-You need a COA from
Porsche to match the numbers. I'd suspect they may as the engine is a 1.8. Need to be a member of PCA or have a buddy that can order you a copy. $75 if I recall.
3-Really hard to say. Shouldn't go down, but if they hit 356 of early 911 money I'd say it's going to be more than 5 years, but look at the 914/6. They jumped up over the course of 3 years to 5-10x the value. However there were a lot less made. 75 is a more common year, heck I have 3 75s. The early 70, 73 2.0 Appearance group, and late 76 seem to be the most common collectibles. Of course the LE Canam 74 series , but they have already seen some appreciation. Mostly condition would dictate the higher values.
4- Not sure.
Look for the best example you can find, spend a little more up front, or if you can do the work, this could be a great project, really depends on your motivation.
As an investment your primary returns will be in the pleasure you get driving the car.