The Voyager Marine 18 ft. Sport Cruise Deluxe 2012 is a pontoon design and the Voyager Marine Series 7000 (1670 Open) 2010 is a flat-bottom design, so you're likely deciding between two noticeably 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 - Voyager Marine 18 ft. Sport Cruise Deluxe 2012 at 18,0 ft versus Voyager Marine Series 7000 (1670 Open) 2010 at 16,0 ft. Weight tells a clearer story for trailering families: the Voyager Marine 18 ft. Sport Cruise Deluxe 2012 tips the scales at 1 450 lbs - 1 175 lbs more than the Voyager Marine Series 7000 (1670 Open) 2010 at 275 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 Voyager Marine 18 ft. Sport Cruise Deluxe 2012 carries a rated maximum of 75 hp. Engine data for the Voyager Marine Series 7000 (1670 Open) 2010 wasn't available in our records - check the manufacturer's spec sheet before sizing a motor.
For family outings this is probably the sharpest distinction between the two. The Voyager Marine 18 ft. Sport Cruise Deluxe 2012 is rated for 8 passengers, while the Voyager Marine Series 7000 (1670 Open) 2010 caps at 2. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Voyager Marine 18 ft. Sport Cruise Deluxe 2012 could be the deciding factor.
Bottom line: Choose the Voyager Marine 18 ft. Sport Cruise Deluxe 2012 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 Voyager Marine Series 7000 (1670 Open) 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 2 that costs less to run day-to-day.