You've never drove a 4.0L at 90 MPH?
Yes, the 4.0L can push a Jeep at 90 MPH and even into a headwind.
Mine would easily accelerate in 3rd gear all the way to the speed limiter at 96 mph.
MPG penalties are currently gone for everyone.
I don't think the lack of a top or doors is a big of a deal as the limited production run of 250. Nobody will be able to buy one of these.
Not many, but still a few. I remember being one of the few modded TJs at Silver Lake sand dunes around 2000. But by the end of the TJ era, 35s were becoming common.
Here’s an old pic of a few of us with TJs with 35s on 2 of them and 37s on the red one on the left.