Here is an interesting old thread started by Ray Bell way back in "ought 5". I think this is the most Down Under participation I've seen here. It's funny watching Ray trying to guide the thread to the his original idea for the post. It took a few pages for the 4.2 to make the scene.
So it's been a while. What is the ultimate inline 6? I think the most fun one I ever had was the complete surprise in my Datsun 8-10. It would chirp the tires at 80mph shifting into 4th gear. Basically it was a 240Z with electronic injection. Ugly little silver sedan. We had to sell it when moved here. In the winter it needed John Deere assist to get home.