Matching a modified vee Klamath 18 ft. Open 2008 against a deep vee Klamath 19 ft. Baja 2013 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
On paper these two are close siblings in the size department — Klamath 18 ft. Open 2008 at 18,0 ft versus Klamath 19 ft. Baja 2013 at 19,3 ft. At 5 lbs and 75 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
Both boats share a closely matched power ceiling — 75 hp for the Klamath 18 ft. Open 2008 and 90 hp for the Klamath 19 ft. Baja 2013. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.
For family outings this is probably the sharpest distinction between the two. The Klamath 18 ft. Open 2008 is rated for 8 passengers, while the Klamath 19 ft. Baja 2013 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Klamath 18 ft. Open 2008 could be the deciding factor.
Bottom line: Choose the Klamath 18 ft. Open 2008 if your priority is putting more people on the water — it handles 8 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Klamath 19 ft. Baja 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.