Bell 525 Relentless vs Gulfstream G700 vs Piaggio Avanti Evo vs Robinson R66

The Bell 525 Relentless and Robinson R66 are helicopters, while the Gulfstream G700 and Piaggio Avanti EVO are fixed‑wing business aircraft. The G700 sits at the top end of the category as an ultra‑long‑range large‑cabin jet, typically flying about 7,500 nautical miles and carrying roughly 10–19 passengers depending on layout. The Piaggio Avanti EVO is a twin‑turboprop business aircraft aimed at shorter regional missions, with roughly 1,500–1,800 nautical miles of range and usually 6–8 passengers. The Bell 525 is a super‑medium helicopter focused on point‑to‑point access and vertical lift, offering roughly 500–600 nautical miles of range with about 10–16 seats in typical configurations. The Robinson R66 is a light single‑turbine helicopter used for utility and short executive hops, with about 300–350 nautical miles of range and generally 4–5 seats. Overall, the G700 dominates range and cabin volume, the Avanti balances speed and efficiency on midrange trips, and the helicopters trade range for landing flexibility.