Both the Bayliner 170 Bowrider 2013 and the Bayliner 197 SD 2010 are modified-V designs, both built in fibreglass, so 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?

On paper these two are close siblings in the size department - Bayliner 170 Bowrider 2013 at 17,5 ft versus Bayliner 197 SD 2010 at 18,6 ft. Weight tells a clearer story for trailering families: the Bayliner 197 SD 2010 tips the scales at 2 695 lbs - 942 lbs less than the Bayliner 170 Bowrider 2013 at 1 753 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 Bayliner 197 SD 2010 tops out at 190 hp. Engine specs for the Bayliner 170 Bowrider 2013 aren't listed - confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Bayliner 197 SD 2010 carries 35 gallons versus 21 gallons in the Bayliner 170 Bowrider 2013. 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 Bayliner 197 SD 2010 is rated for 10 passengers, while the Bayliner 170 Bowrider 2013 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Bayliner 197 SD 2010 could be the deciding factor.