Well i just got the game today and ive played forza motorsport 4 and was a high level and in Forza H as soon as i entered garage it asked me if i wanted gift cars based on my level for playing forza 4 i accepted and got 5 new cars and a thought came why not make a new account rehash/resign my save to that account and get 5 more cars and gift them to myself it should work and using a Forza 4 save editor max out your level to get better gifts maybe ?
Alright let me rephrase this mod your FM4 save to level 50 and start a new career in horizon and do the loyalty thing you get Best cars possible including a Aventador