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GMC Hummer EV vs Porsche Taycan: 5-year value retention (48% vs 50%), resale value, and cost of ownership head-to-head. Porsche Taycan holds its value better.
On five-year value retention the Porsche Taycan comes out ahead, holding about 50% of its value versus 48% for the GMC Hummer EV. Over the first five years the Porsche Taycan loses roughly $53,429 while the GMC Hummer EV loses about $50,058 — a gap near $-3371.
First-year drop is the biggest factor: the Porsche Taycan sheds about 9% in year one versus 1% for the GMC Hummer EV. If you buy used, the steeper early drop is what the original owner absorbs.