G1: H2H, 1 lap, win (missing the first turn and crashing into the wall is a bad strategy)
G2: autocross, win, 2.5% battery charge
G3: speed snap, win with average speed of at least 60mph (95kph) (brake as little as possible; a little is enough for turn 1, the others do not need it)
G4: speed record, win, no reversing, 10% battery charge
G5: Formula E, 3 laps, win, rolling start, 30.02% battery charge
Sorry, but I missed the rewards for completion of the stage.
Harder than the previous stages but still easy. And, I am softening (very slightly) on HK.