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Audi A6 holds its value better — 39% five-year retention against 39% for the BMW 7 Series. Resale value and cost of ownership, head to head.
On five-year value retention the Audi A6 comes out ahead, holding about 39% of its value versus 39% for the BMW 7 Series. Over the first five years the Audi A6 loses roughly $35,932 while the BMW 7 Series loses about $59,411 — a gap near $23,479.
First-year drop is the biggest factor: the Audi A6 sheds about 24% in year one versus 20% for the BMW 7 Series. If you buy used, the steeper early drop is what the original owner absorbs.