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Acura TLX holds its value better — 61% five-year retention against 61% for the Audi S5. Resale value and cost of ownership, head to head.
On five-year value retention the Acura TLX comes out ahead, holding about 61% of its value versus 61% for the Audi S5. Over the first five years the Acura TLX loses roughly $17,843 while the Audi S5 loses about $23,028 — a gap near $5,185.
First-year drop is the biggest factor: the Acura TLX sheds about 8% in year one versus 11% for the Audi S5. If you buy used, the steeper early drop is what the original owner absorbs.