Hannigan Sierra vs Polaris Slingshot SLR Autodrive: 5-year value retention (71% vs 71%), resale value, and cost of ownership head-to-head. Hannigan Sierra holds its value better.
On five-year value retention the Hannigan Sierra comes out ahead, holding about 71% of its value versus 71% for the Polaris Slingshot SLR Autodrive. Over the first five years the Hannigan Sierra loses roughly $1,215 while the Polaris Slingshot SLR Autodrive loses about $9,543 — a gap near $8,328.
First-year drop is the biggest factor: the Hannigan Sierra sheds about 0% in year one versus 12% for the Polaris Slingshot SLR Autodrive. If you buy used, the steeper early drop is what the original owner absorbs.
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