Oh, man, this old thread came back to life just like a walker on "The Walking Dead"
Not much more ever happened with these models, unfortunately. There was just never enough time left over after meeting all my other obligations to work on my own models. Still isn't! Plus, my OCD makes it difficult to complete things I really care about (I always re-do things and I'm never quite satisfied). On the plus side, I've been able to share some of the work I did on these models in the form of my Eagle GT tire and Vector wheel sets.
But I did build a turbo 3.8 motor last year just as a little excercise:
The weathering on the motor and trans is amazing