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Buick Cascada vs Chevrolet Impala: 5-year value retention (55% vs 55%), resale value, and cost of ownership head-to-head. Chevrolet Impala holds its value better.
On five-year value retention the Chevrolet Impala comes out ahead, holding about 55% of its value versus 55% for the Buick Cascada. Over the first five years the Chevrolet Impala loses roughly $14,229 while the Buick Cascada loses about $14,915 — a gap near $686.
First-year drop is the biggest factor: the Chevrolet Impala sheds about 9% in year one versus 9% for the Buick Cascada. If you buy used, the steeper early drop is what the original owner absorbs.