Character changes

Different cars

 * Annie was originally going to drive a Silvia S13 Coupe with the front of a 180SX, which is also considered a OneVia like her S14.3, but it ended up being identical to the US-spec 240SX Coupe.
 * Annie was originally going to drive a right-hand drive Nissan Fairlady Z (370Z) as a second car and not a 2019 Camaro SS.
 * Marcus was originally going to drive an Aston Martin One-77, and then an Acura NSX.
 * Chris was originally going to drive a Mitsubishi 3000GT.
 * Jason was originally going to drive a 22B Impreza, but then it got changed to a 2.5 RS Sedan.
 * Akira Ogami was going to drive an A90 Toyota Supra, but then it got changed to a Lexus LC 500.
 * A Mitsubishi FTO was once considered for Vanessa Fusky, but the creator of the character, Hailegabriel, agreed with the Audi TT.
 * Korey was going to drive a Mitsuki Alta SX Coupe, a fictional Japanese compact car designed by Alex. However, as real-life car manufacturers are only allowed in the furry universe, Alex decided against it and gave Korey one of its inspirations, the Mirage Asti.
 * Rosa was going to drive a Rossolini Tempesta, a car from Burnout: Paradise, but then it got changed to the Ferrari Portofino.
 * Jared/JC was going to drive a 1991 Mitsuki Alta GTi, but for the same reason as Korey, it got changed to a blue Civic EG6.
 * Samantha Barlett was going to drive an Acura TL, an RSX, or a Celica, before being given a BMW 330Ci. And before the BMW 330Ci, she was going to drive an M3 CSL, but that car wasn't sold in the USA and is considered a rare car.

Species change

 * Because humans were abolished from AFU in 2021, the following characters have their species changed:
 * Hiroshi Nagatomo -> Tiger
 * Jason Ferguson -> Deer

Character traits

 * Annie was going to wear a jacket wrapped around her waist.
 * Annie and Jason were going to be car tuners, being owners of a tuning shop called "TakeOff Motorsports". The name TakeOff comes from a sponsor name in the Kaido Battle series.

Character names

 * Maria Foxington's name was going to be Nina Foxington.
 * Masami Kogawa's name was going to be Misami Ishida.
 * Jason Ferguson's last name was going to be Walker. The name was changed because it matched with a FlatOut 2 and Ultimate Carnage character.