Gold upgrade time on Hockenheimring. Couldn't do any of the goals with R$ only.
Goal 1 - 1 lap cup on short track. No issues getting time, but once you attempt to skid, just lose too much time to win
Goal 2 - 2 lap cup on GP circuit. Easy to win, but couldn't get the required distance with R$ upgrades
Goal 3 - TT on short track. Not sure how many upgrades needed to do 37 second lap
Goal 4 - elimination on national circuit. 5 oppenents with even larger gaps between bots than earlier stage
Reward 20 gold