Not to mention the networked telemetry systems present in almost all modern cars. GPS is standard, as are "smart" entertainment consoles. Our cars already gener

Not to mention the networked telemetry systems present in almost all modern cars. GPS is standard, as are "smart" entertainment consoles. Our cars already generate tons of data that can be used to track us, I'd be far more comfortable with recording a single data point on a toll road than I would having every single one of my movements tracked.