Matching a deep vee G3 Boats Guide V18 2012 against a tunnel G3 Boats Prop Tunnel 1860 CCT 2011 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 — G3 Boats Guide V18 2012 at 17,8 ft versus G3 Boats Prop Tunnel 1860 CCT 2011 at 18,1 ft. At 54 lbs and 87 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 — 70 hp for the G3 Boats Guide V18 2012 and 90 hp for the G3 Boats Prop Tunnel 1860 CCT 2011. 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 G3 Boats Guide V18 2012 is rated for 7 passengers, while the G3 Boats Prop Tunnel 1860 CCT 2011 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the G3 Boats Guide V18 2012 could be the deciding factor.
Bottom line: Choose the G3 Boats Guide V18 2012 if your priority is putting more people on the water — it handles 7 passengers and at 17,8 ft it has the deck room to back that rating up comfortably. The G3 Boats Prop Tunnel 1860 CCT 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.