Both the Sea Fox 18 BF Sport 2007 and the Sea Fox 195BF 2008 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 - Sea Fox 18 BF Sport 2007 at 17,0 ft versus Sea Fox 195BF 2008 at 19,0 ft. At 1 500 lbs and 1 600 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 - 140 hp for the Sea Fox 18 BF Sport 2007 and 150 hp for the Sea Fox 195BF 2008. 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. Fuel capacity breaks the other way: the Sea Fox 195BF 2008 carries 47 gallons versus 27 gallons in the Sea Fox 18 BF Sport 2007. 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 Sea Fox 195BF 2008 is rated for 7 passengers, while the Sea Fox 18 BF Sport 2007 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Fox 195BF 2008 could be the deciding factor.
Bottom line: Choose the Sea Fox 195BF 2008 if your priority is putting more people on the water - it handles 7 passengers and at 19,0 ft it has the deck room to back that rating up comfortably. The Sea Fox 18 BF Sport 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.