Other than enjoying the beauty of the car, is there any potential investment return on owning this?

That is, I inherited C5601503 from my father. He restored it beautifully , but it needs some TLC, especially in making it run well.

Is spending thousands of dollars to restore it ever worth it?

I'm not looking to sell it, but do people end up fixing these up only to see it get $45k-$55K? I'm assuming the $100K+ cars probably rarely left a museum; am I wrong?