Talk:World Series/@comment-93.87.190.50-20151028183959/@comment-174.119.146.40-20151103162402

I've gotten many top speed upgrades, but kinda late since you already kno that lol. It's just all luck I think, but then again I hav over 20+ D class nitro upgrade but onli 7 for d class top speed so there might b some theory behind it