Harris DL 270 Twin Engine vs Harris SL 250: 5-year value retention (54% vs 54%), resale value, and cost of ownership head-to-head. Harris DL 270 Twin Engine holds its value better.
On five-year value retention the Harris DL 270 Twin Engine comes out ahead, holding about 54% of its value versus 54% for the Harris SL 250. Over the first five years the Harris DL 270 Twin Engine loses roughly $152,413 while the Harris SL 250 loses about $76,901 — a gap near $-75512.
First-year drop is the biggest factor: the Harris DL 270 Twin Engine sheds about 12% in year one versus 15% for the Harris SL 250. If you buy used, the steeper early drop is what the original owner absorbs.
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