Talk:Research & Development/BMW 3.0 CSL Hommage/@comment-84.140.127.171-20160414040645

Im at max3-5-3-4/pro5-5-5-5. If i can get free A-upgrades, which one should i improve to beat Test50/lastAI ? (If needed, i would pay tokens for Test50, so prob. Is more important to know what should i improve to Get there!, i read that test48 is difficult...)