>>715009324
simple.

>6 int cards
>raise all uma friendships to orange
>never stop training wit after max friendships.
>train speed when not friendship training or when you max int
>Buy all the skills in shop you can use.

The only problem youll have is wining side races (somewhat) and not coming in first in some of the main races, although you'll never drop out of top 3 if you do it right.