The FE4 is probably the flagship top that American Fastback had on display at the 2018 SEMA Show. While what they had was just a concept, you could definitely see the potential in what it could be for anyone wanting to make their JL Wrangler Unlimited into a small camper. Not exactly my cup of tea being that it'd basically render an extremely capable off road vehicle into just another SUV that can drive down dirt roads but I can see how there would be some out there who'd be all over it. Not sure about weight but it did look really heavy and it'd be hard for me to think that any coil suspension system could carry the load without some kind of air bag system to help. Also, I can't imagine what the final price tag will be on this but it can't be cheap. But then, there's always their "financing" that they offer.