Thunderbird Formula 350 SUN Sport keeps an estimated 55% of its value after 5 years — #5687 of 5915 boats VINdown tracks. See its full depreciation curve, cost per day, and best model year to buy.
Per VINdown's modeling, the Thunderbird Formula 350 SUN Sport retains an estimated 55% of its value after five years, ranking #5687 of 5915 boats we track. That trails the 62% five-year average for Cruiser in its class by 7 points, so it depreciates faster than most rivals.
Most of the loss lands early: the Thunderbird Formula 350 SUN Sport sheds about 36% of its value in year one alone. From roughly $732,355 it falls to around $403,527 by year five — a five-year loss near $328,828, about $180.18 a day in depreciation.
Because the steepest drop hits around year 1, a lightly-used Thunderbird Formula 350 SUN Sport bought at 1 year old lets the first owner absorb the worst of the depreciation while the curve flattens — usually the value sweet spot. Explore the full year-by-year curve, trims, and true cost of ownership in the Model Lab above.
It keeps an estimated about 55% of its value after five years — worse than most among the 5915 boats VINdown tracks (ranked #5687).
From about $732,355 it drops to roughly $403,527 after five years — a loss near $328,828 (55% retained).
Around 1 year old: that is just past the steepest depreciation, so you skip the biggest drop while the value curve is flattening.
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