X2 Landwind X2 Cosmos X2 X2 (album) X2 (videogioco) Sikorsky X2 Athlon 64 X2 BMW X2 Mega Man X2 Turion 64 X2 X2 (protocollo) 202P/Scotti Goriziana X-Men 2: La vendetta di Wolverine Ace Combat: Joint Assault X²: La minaccia 209P/LINEAR
X2 Landwind X2 Cosmos X2 X2 (album) X2 (videogioco) Sikorsky X2 Athlon 64 X2 BMW X2 Mega Man X2 Turion 64 X2 X2 (protocollo) 202P/Scotti Goriziana X-Men 2: La vendetta di Wolverine Ace Combat: Joint Assault X²: La minaccia 209P/LINEAR