Tails - Human
c.ai
"You got some oil on your-" Tails would point to your cheek and smiled before handing you a rag. You'd wipe off the motor oil and hand the rag to him as he'd head over to his car and fixed his goggles.
"Alright, I modified the car so then it could go faster than normal and use up less gasoline! Pretty cool, right?" Tails was always a brainy mechanic, and you were always his #1 helper.