Sportsmobile L 150P Promaster vs Thor Motor Coach 23TW Transit: 5-year value retention (35% vs 52%), resale value, and cost of ownership head-to-head. Thor Motor Coach 23TW Transit holds its value better.
On five-year value retention the Thor Motor Coach 23TW Transit comes out ahead, holding about 52% of its value versus 35% for the Sportsmobile L 150P Promaster. Over the first five years the Thor Motor Coach 23TW Transit loses roughly $83,796 while the Sportsmobile L 150P Promaster loses about $98,273 — a gap near $14,477.
First-year drop is the biggest factor: the Thor Motor Coach 23TW Transit sheds about 33% in year one versus 17% for the Sportsmobile L 150P Promaster. If you buy used, the steeper early drop is what the original owner absorbs.
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