So I have two things to ask.
One: have you ever considered making playable versions of two of the cars that are currently seen as Rivals and traffic? Specifically, well, from what little I can see of them, I think they’re both Porsches? We already have the Countach and the Corvette, so we’re already driving vehicles outside of Ferrari.
Two: would you ever consider adding the “Mickey Arrange” versions of the Super Hang-On soundtrack, and/or the modern remixes of the Outrun and Turbo Outrun soundtracks that were made for Outrun 2 and Outrun 2006: Coast2Coast? Might be a bit much to literally double your game’s soundtrack, especially with high quality files.
Both of these are up to you. The game’s awesome as it is.