Complete all Campaign cups

Play at least one track on Neon City

Play one of your custom tracks

Place a special Track piece

Perform 10 drag and draft maneuver

Create a small track in the track builder

Beat your Ghost

Apply a Car Skin and run with it.

Finish the Track Builder Tutorial

Persuade Kuno to attack the mill right away.

Collect all trophies

Don't kill anyone during main quest line (except Runt).

Capon will succeed, even though you sent him off with a nasty rash.