To find this information, I recommend you:
* Consult the owner's manual: The owner's manual for your specific 2012 Audi A4 will likely have this information.
* Check Audi's website: You can often find detailed specifications for different models on the manufacturer's website.
* Look up online resources: Websites like Edmunds, Car and Driver, or Kelley Blue Book may have this information available.
Please note that the front track can vary depending on the specific trim level and engine options.