I got to the first ten seater pretty quick by running the Silver quests. But the next quest requires 11 seats. I have over 1million for purchase but the 12 seater isn't available till lvl 8. At just 4xp for running some cargo or passengers, it'll take like another 300 flights before I can continue the gameplay. kinda stopped at this point :/
 "Caravan Beast"){kind=icon}
 "Total Enigma"){kind=icon}
 "Age of War"){kind=icon}
 "Aviator"){kind=icon}