Beechcraft King Air 360 Er vs Enstrom 480b vs Piaggio Avanti Evo vs Piper M600 Sls

By category, the Beechcraft King Air 360ER is a pressurized twin‑turboprop business aircraft optimized for utility and longer legs; the Piaggio Avanti EVO is also a pressurized twin‑turboprop, but tuned more toward fast executive transport; the Piper M600 SLS is a pressurized single‑engine turboprop personal/business aircraft; and the Enstrom 480B is a single‑engine turbine helicopter aimed at short‑range missions and vertical access rather than cross‑country efficiency. On range, the King Air 360ER is generally the longest‑legged of the group (roughly on the order of 1,500–1,800 nm depending on configuration and reserves), with the Avanti EVO next (about 1,400–1,700 nm). The M600 SLS typically trails those twins but still offers substantial cross‑country capability for a single (around 1,000–1,400 nm). The Enstrom 480B is far shorter‑range (commonly a few hundred nautical miles). For passenger capacity, the King Air 360ER and Avanti EVO usually seat the most (typically 6–9 depending on interior), the M600 SLS commonly carries about 5–6, and the 480B generally carries 4–5 including the pilot.