I have no idea how many C4 tri fives are out there, but I would really love to hear more real world feed back as to how great, not so great of a set-up it is? So far I have committed to a $3000 55, and $2000 C4 suspension. Ready to move on step 3, getting a conversion chassis. CED first choice. Just need to hear more from people that have actually driven them, or any others. I realize every set-up, or expectation is different. I just want to do it right. I want the best driving, handling 55 possible with the least issues.