Four Winns HD8 Surf vs Thunderbird Formula 270 BR — Depreciation Comparison

Four Winns HD8 Surf vs Thunderbird Formula 270 BR: 5-year value retention (55% vs 55%), resale value, and cost of ownership head-to-head. Four Winns HD8 Surf holds its value better.

On five-year value retention the Four Winns HD8 Surf comes out ahead, holding about 55% of its value versus 55% for the Thunderbird Formula 270 BR. Over the first five years the Four Winns HD8 Surf loses roughly $67,039 while the Thunderbird Formula 270 BR loses about $112,196 — a gap near $45,157.

First-year drop is the biggest factor: the Four Winns HD8 Surf sheds about 33% in year one versus 36% for the Thunderbird Formula 270 BR. If you buy used, the steeper early drop is what the original owner absorbs.

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