Beechcraft King Air 360 Er vs Piaggio Avanti Evo vs Piper M600 Sls vs Robinson R66

In category, the Beechcraft King Air 360ER and Piaggio Avanti EVO are pressurized twin‑turboprop business aircraft, while the Piper M600 SLS is a pressurized single‑engine turboprop, and the Robinson R66 is a single‑engine turbine helicopter. For range, the King Air 360ER is generally the longest‑legged of the group (on the order of roughly 1,500 nautical miles depending on payload and reserves), the Avanti EVO is also long‑range but typically a bit shorter in real‑world missions, and the M600 SLS is competitive for a single (often around the 1,000–1,400 nautical mile class). The R66 has the shortest range, usually only a few hundred nautical miles, and is more constrained by speed and fuel capacity but offers vertical access. For passenger capacity, the King Air 360ER commonly carries 6–9 occupants, the Avanti EVO typically seats about 6–9, the M600 SLS is usually configured for about 4–6 plus a pilot, and the R66 generally carries a pilot plus up to 4 passengers.