The "races" are either boring beyond compare, or are set up simply to frustrate the user by purposely putting civilian cars in the way at the most inopportune times or by having AI competitors get in front of you and purposely slow you down (this last aspect has always been a frustrating feature of the Forza line)

Once you've mastered the track you can up the AI difficulty level for a really fun experience

My biggest complaint is the AI difficulty level

I love Forza as it is and I thought this game was AWESOME!!