When two boats share the same hull type — in this case both the Alumaweld Super Vee LT 18 2008 and the Alumaweld Super Vee LT 20 ft. 2012 are modified vee designs with aluminum construction — 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 — Alumaweld Super Vee LT 18 2008 at 18,0 ft versus Alumaweld Super Vee LT 20 ft. 2012 at 20,3 ft. At 98 lbs and 12 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 — 115 hp for the Alumaweld Super Vee LT 18 2008 and 115 hp for the Alumaweld Super Vee LT 20 ft. 2012. 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 Alumaweld Super Vee LT 20 ft. 2012 carries 35 gallons versus 28 gallons in the Alumaweld Super Vee LT 18 2008. 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 Alumaweld Super Vee LT 20 ft. 2012 is rated for 6 passengers, while the Alumaweld Super Vee LT 18 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumaweld Super Vee LT 20 ft. 2012 could be the deciding factor.
Bottom line: Choose the Alumaweld Super Vee LT 20 ft. 2012 if your priority is putting more people on the water — it handles 6 passengers and at 20,3 ft it has the deck room to back that rating up comfortably. The Alumaweld Super Vee LT 18 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.