Commute type	Data Gathered by	Defense				Cost/Effort/Tradeoff
		2017 Car	2005 Car	1995 Car	Notes	A 1995 car is cheap to buy, expensive to maintain, in both cash and time.  A similar analysis applies to a 2005 car.  A company car can disassociate your name from the car, may involve more expensive insurance, etc.
Your Car		More likely to have more radios
Environmental Collection
	ALPR (Auto License Plate Recognition)	none	none	none
	Toll bridges	none	none	none	Not just at bridges, see https://tech.slashdot.org/story/13/09/13/1547218/nyc-is-tracking-rfid-toll-collection-tags-all-over-the-city	Cash payment still involves photo of license plate
	Parking lot	pay cash	pay cash	pay cash		May not be able to pay cash (monthly), avoid ALPR at many garages
	Radio: key fob
	Radio: Tire pressure	legally mandated?
Features in your car	Blackbox	none	none	probably no black box		Far less likely to be on a motorcycle
	On-Star	none if present?	none if present?	probably doesn't have		Hard to buy a GM car without On-Star, hard to turn off telemetry?
	Other telemetry features?	none if present?	none if present?	probably doesn't have
	Vehicle tracking/recovery				Eg, LoJack/SVR	https://gizmodo.com/passwords-to-access-over-a-half-million-car-tracking-de-1818624272
	INRIX opencar	none if present?	none if present?	probably doesn't have		http://inrix.com/products/inrix-opencar/
	In-dash NAV				May be receive only, or may transmit
	Self-driving features		(Tesla, perhaps others, collect; configurability unclear to us)
	Backup camera?		(Is this sent remote?)
Features in your phone
	Map applications					Apple Maps advertises Differential Privacy, less good traffic info