When two boats share the same hull type — in this case both the Regal 2100 Bowrider 2010 and the Regal 2520 FasDeck 2008 are deep 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 2520 FasDeck 2008 measures 25,0 feet overall (2008), giving it roughly 4,0 additional feet of deck space compared to the Regal 2100 Bowrider 2010 at 21,0 feet (2010). Weight tells a clearer story for trailering families: the Regal 2520 FasDeck 2008 tips the scales at 465 lbs — 431 lbs less than the Regal 2100 Bowrider 2010 at 34 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 2520 FasDeck 2008 tops out at 375 hp. Engine specs for the Regal 2100 Bowrider 2010 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Regal 2520 FasDeck 2008 carries 62 gallons versus 42 gallons in the Regal 2100 Bowrider 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Regal 2520 FasDeck 2008 is rated for 7 passengers, while the Regal 2100 Bowrider 2010 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Regal 2520 FasDeck 2008 could be the deciding factor.