Isata 24FWM Mercedes Sprinter vs Thor Motor Coach 18M Promaster: 5-year value retention (62% vs 62%), resale value, and cost of ownership head-to-head. Isata 24FWM Mercedes Sprinter holds its value better.
On five-year value retention the Isata 24FWM Mercedes Sprinter comes out ahead, holding about 62% of its value versus 62% for the Thor Motor Coach 18M Promaster. Over the first five years the Isata 24FWM Mercedes Sprinter loses roughly $76,423 while the Thor Motor Coach 18M Promaster loses about $52,014 — a gap near $-24409.
First-year drop is the biggest factor: the Isata 24FWM Mercedes Sprinter sheds about 26% in year one versus 28% for the Thor Motor Coach 18M Promaster. If you buy used, the steeper early drop is what the original owner absorbs.
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