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Audi S7 vs Infiniti Q50: 5-year value retention (50% vs 51%), resale value, and cost of ownership head-to-head. Infiniti Q50 holds its value better.
On five-year value retention the Infiniti Q50 comes out ahead, holding about 51% of its value versus 50% for the Audi S7. Over the first five years the Infiniti Q50 loses roughly $21,224 while the Audi S7 loses about $42,456 — a gap near $21,232.
First-year drop is the biggest factor: the Infiniti Q50 sheds about 12% in year one versus 14% for the Audi S7. If you buy used, the steeper early drop is what the original owner absorbs.