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BMW Z4 holds its value better — 67% five-year retention against 66% for the Cadillac CTS-V. Resale value and cost of ownership, head to head.
On five-year value retention the BMW Z4 comes out ahead, holding about 67% of its value versus 66% for the Cadillac CTS-V. Over the first five years the BMW Z4 loses roughly $18,235 while the Cadillac CTS-V loses about $29,318 — a gap near $11,083.
First-year drop is the biggest factor: the BMW Z4 sheds about 9% in year one versus 7% for the Cadillac CTS-V. If you buy used, the steeper early drop is what the original owner absorbs.