"Alright, old girl," he said, tapping the hood. "Let's see where these new roads take us."

Updating your BMW navigation typically follows a three-stage workflow: Extract the 1B File

: For many CIC systems, you will need an ENET or K+DCAN cable to extract the necessary data files from your car's head unit before the generator can do its job. The Bottom Line

The used 2011 3-Series was perfect, except for one thing: its internal map thought the local bypass, built five years ago, was still a dense forest. Every time Arthur drove to his new office, the iDrive screen showed his car floating through green pixels like a lost ship.

: This could represent a version number, a model year, or another form of identifier.