You're forgetting to factor in the tire compound. See http://books.google.es/books?id=YY1fx4BOI5UC&pg=PA42&lpg=PA42&dq=speed+secrets+slip+angle&source=bl&ots=91

You're forgetting to factor in the tire compound. See http://books.google.es/books?id=YY1fx4BOI5UC&pg=PA42&lpg=PA42&dq=speed+secrets+slip+angle&source=bl&ots=91QJZpekrV&sig=HhseoZOI1b4CVLraNz6UVP3y3-4&hl=en&ei=C6_nTuKMKdSzhAel7fW0Cg&sa=X&oi=book_result&ct=result&redir_esc=y#v=onepage&q&f=false http://books.google.es/books?id=YY1fx4BOI5UC&pg=PA42&#38... for more information on optimal slip angles in race cars. Yes, sliding too much is bad. Sliding just enough is necessary if you want to win.