Thanks for the suggestion on Cutwater. Seems interesting, but can't find anything on the type of boat this really is. Nothing on fuel burn or range. Looks like it can do 30kts, so is this no different than an express boat like a searay?.
Cutwaters are fast coastal cruisers that are extremely similar to Ranger Tugs (same parent company and built in the same factories). They are designed with a stepped hull to go slightly faster and are outfitted with slightly larger engines than RTs at the same length.
Other than that, the differences between the two are largely cosmetic (e.g. RTs look like small tugs whereas Cutwaters have downeast styling).
The larger models (28, 30) are designed for extended cruising if the tight quarters are acceptable. We had a CW 30 for 4 years (liked it, but moved up in size) and our mechanic always complained that it was a 50' boat packed into 30'. That's about right and captures both the good part and the challenge.