I think a simple power slide back and forth over the entire front and back seats would be adequate. Designing the entire top to fold completely into the trunk adds a lot of complexity and more things that can break down. Also the issue of how you get it to fold the side and rear windows without...
The Rugged Ridge one is no longer being sold, probably due to no one wanting to spend 5K on a soft top. On another note I would not be surprised if it's a JL Unlimited option only.
You are right people cross shop (or second, third car shop) Mustang and Wrangler. I was one of them. Having looked into a '15 Ecoboost, I can tell you just anecdotally from the S550 forums and FB there's been more than a few guys who have blown up their tuned 4 bangers and not with overly...