When two boats share the same hull type — in this case both the ThunderJet Alexis Outboard - 21 ft. 2008 and the ThunderJet Luxor 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?

The ThunderJet Luxor 2012 tops out at 32 hp. Engine specs for the ThunderJet Alexis Outboard - 21 ft. 2008 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the ThunderJet Luxor 2012 carries 48 gallons versus 5 gallons in the ThunderJet Alexis Outboard - 21 ft. 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 ThunderJet Alexis Outboard - 21 ft. 2008 is rated for 6 passengers, while the ThunderJet Luxor 2012 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the ThunderJet Alexis Outboard - 21 ft. 2008 could be the deciding factor.