all at Leipzig

G 1: Dynamic circuit, H2H, 1 lap, win with top speed of at least 257,5 km/h twice
G 2: Short circuit, H2H, 1 lap, win in opposite direction, no off-track, no damage
G 3: Long circuit, H2H, 2 laps, win with average speed of at least 198 km/h, no damage, no off-track longer than 2 secs
G 4: Dynamic circuit, Speed Record, win with no off-track

Recommended PR: 88.8
Skip: 40 GC each
Rewards: 15,000 R$ + 10 GC

EDIT: hint for practicing reverse direction:

Legends - Breakneck Legends - tier 3.1. - H2H - Porsche Weissach

I didn't browse all series, so there will be more and better cars and events on Leipzig Short. Best events are H2H, TT, Hunter, Speed Record. Feel free to add your recommendations.

EDIT 2: When practicing reverse direction, do not forget to switch steering assists manually to OFF. It will be automatically OFF in the event.