Allegro 45FP Powerglide 450HP vs Thor Motor Coach 31WV E450 V8: 5-year value retention (51% vs 51%), resale value, and cost of ownership head-to-head. Allegro 45FP Powerglide 450HP holds its value better.
On five-year value retention the Allegro 45FP Powerglide 450HP comes out ahead, holding about 51% of its value versus 51% for the Thor Motor Coach 31WV E450 V8. Over the first five years the Allegro 45FP Powerglide 450HP loses roughly $337,485 while the Thor Motor Coach 31WV E450 V8 loses about $80,353 — a gap near $-257132.
First-year drop is the biggest factor: the Allegro 45FP Powerglide 450HP sheds about 20% in year one versus 32% for the Thor Motor Coach 31WV E450 V8. If you buy used, the steeper early drop is what the original owner absorbs.
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