The molds are not exactly the same, but I think the Excalibur is based on the Scarab mold. A pad was added and the beam is only slightly wider. The construction however is fairly close. No one is saying that these boats are exact replica's from Scarab molds.

And actually they are better than the small Scarabs from a few years ago. The 19, 22, 26ft Scarabs barely had a cabin. The 22 and smaller weren't even cabins. They had storage crawl spaces.

I would think the scarabs would be lighter and a hair faster but Ill give up a couple mph for a cabin

wellcraft could have called them scarab's they went for a differnt name because they were trying to get some interest in a new boat

crmax,
I was told by my salesman that Larry Smith (he built the first Scarab's in the 70's) owns the trademark name "Scarab" and now gets money for every Scarab sold. He gets a percentage of each boat's cost or a flat rate, I'm not sure which. This is no big deal to a buyer when your buying a $125,000+ boat, but adds an unnecessary cost to the smaller pricepoint boats like ours. That's part of the reason for changing the name, plus like you said it's nice having more headroom in the cabin with a taller deck. These boat's are not meant to be offshore boat's but a more user friendly all around good boat.