When two boats share the same hull type — in this case both the Regal 2665 Commodore 2008 and the Regal 42 Sport Coupe 2011 are modified vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

Size is the most obvious dividing line here. The Regal 42 Sport Coupe 2011 measures 42,3 feet overall (2011), giving it roughly 13,3 additional feet of deck space compared to the Regal 2665 Commodore 2008 at 29,0 feet (2008). Weight tells a clearer story for trailering families: the Regal 2665 Commodore 2008 tips the scales at 685 lbs — 497 lbs more than the Regal 42 Sport Coupe 2011 at 188 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The Regal 2665 Commodore 2008 carries a rated maximum of 375 hp. Engine data for the Regal 42 Sport Coupe 2011 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Regal 2665 Commodore 2008 carries 74 gallons versus 28 gallons in the Regal 42 Sport Coupe 2011. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

The Regal 2665 Commodore 2008 is rated for up to 13 people. Passenger data for the Regal 42 Sport Coupe 2011 wasn't available.