Both the Donzi 29 ZF Open 2009 and the Donzi 29 ZF Open 2010 are deep-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 - Donzi 29 ZF Open 2009 at 28,6 ft versus Donzi 29 ZF Open 2010 at 28,6 ft. At 6 200 lbs and 6 200 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 - 550 hp for the Donzi 29 ZF Open 2009 and 550 hp for the Donzi 29 ZF Open 2010. 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. Both carry nearly identical fuel loads - 180 gal and 180 gal - so range won't be a tiebreaker here.

Both boats are rated for 8 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.