More cars:
Note: This procedure involves editing a game file; create a backup copy of the file 
before proceeding. Use a text editor to edit the "championship.ini" file in the "\RC 
Cars\script" folder. Look under the "Cars Information" heading and change 
the "IsEnabled (int)" value for the desired car to "1". 

More tracks:
Note: This procedure involves editing a game file; create a backup copy of the file 
before proceeding. Use a text editor to edit the "championship.ini" file in the "\RC 
Cars\script" folder. Look under the "Level Information" heading and change 
the "IsOpened (int)" value for the desired track to "1". 

Cheaper tracks:
Note: This procedure involves editing a game file; create a backup copy of the file 
before proceeding. Use a text editor to edit the "championship.ini" file in the "\RC 
Cars\script" folder. Look under the "Level Information" heading and change 
the "AccessCash (int)" value to "0". Any track can now be unlocked for free. 

Free race fee:
Note: This procedure involves editing a game file; create a backup copy of the file 
before proceeding. Use a text editor to edit the "championship.ini" file in the "\RC 
Cars\script" folder. Look under the "Level Information" heading and change 
the "RaceTariff (int)" value to "0". Any track can now be raced on for free. 

Cheap upgrades:
Note: This procedure involves editing a game file; create a backup copy of the file 
before proceeding. Use a text editor to edit the "championship.ini" file in the "\RC 
Cars\script" folder. Look under the "Upgrades" heading and change the "RaceTariff 
(int)" value to any desired low number. 

Higher prize:
Note: This procedure involves editing a game file; create a backup copy of the file 
before proceeding. Use a text editor to edit the "championship.ini" file in the "\RC 
Cars\script" folder. Look under the "Level Information" heading and change 
the "Place1 (int)", "Place2 (int)", or "Place3 (int)" value to the desired amount of 
winning money. 

Start with more money:
Note: This procedure involves editing a game file; create a backup copy of the file 
before proceeding. Use a text editor to edit the "championship.ini" file in the "\RC 
Cars\script" folder. Look under the "Car Codes" heading and change 
the "DefaultCash (int)" value to a higher amount to start with that much money.