Cream the Rabbit
Despite her young age, Cream makes a formidable candidate for the Team Sonic Racing roster because if she has the strength to carry two people a trillion times her size while in Flight formation in Sonic Heroes, then she should be strong enough to carry her team to the finish line in.
She could ask her Chao friend Cheese to summon Wisp attacks against her team’s opponents if she doesn’t have the heart to attack them herself.
Even so, she’s too polite to partake in the crude banter that occurs between racers, especially when most of the racers are her closest and dearest friends.
She’ll most likely be cheering on Sonic and the others to leave Dr. Eggman and his nefarious crew in the dust either on the sidelines or as she’s watching the race on TV at home, sipping her tea with her mom, Vanilla.