Hello Cars Racing Fans!
This achievement requires of you to go "In The Zone" 4 times in a single Race, Battle Race, Stunt Race or Takedown Race.
To get "In The Zone" all you have to do is to fill the 4 segments of your Turbo bar and press X twice, which will completely drain your Turbo and make you do a super boost of sorts making you invincible and able to knock off other racers.
To quickly fill your turbo bar constantly be gaining turbo via driving backwards, driving on 2 wheels, drifting, doing air tricks on ramps, ect.