If you're unable to find the product key and serial number, you can try the following:
A final code generated on the developer's activation page using your Serial Number and Product Code. Activation Instructions for Non-Steam Versions City Car Driving Product Key And Serial Number
Official keys are bound strictly to the hardware they are activated on. Using shared keys from forums will result in immediate deactivation. www.citycardriving.com Are you attempting to recover a lost serial number from an old purchase, or are you looking to buy a brand new copy FAQ - City Car Driving If you're unable to find the product key
Most "key generator" executables are actually trojans designed to steal personal data or hijack your system. City Car Driving Product Key And Serial Number