Allison XB 21 Prosport Trnmnt ED vs Charger 186: 5-year value retention (67% vs 67%), resale value, and cost of ownership head-to-head. Allison XB 21 Prosport Trnmnt ED holds its value better.
On five-year value retention the Allison XB 21 Prosport Trnmnt ED comes out ahead, holding about 67% of its value versus 67% for the Charger 186. Over the first five years the Allison XB 21 Prosport Trnmnt ED loses roughly $22,304 while the Charger 186 loses about $11,595 — a gap near $-10709.
First-year drop is the biggest factor: the Allison XB 21 Prosport Trnmnt ED sheds about 11% in year one versus 15% for the Charger 186. If you buy used, the steeper early drop is what the original owner absorbs.
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