Why I don't want a WRX anymore (or any fast, fun car)

[phUnk]

they really are tracking our speed with RFIDs.

Holy shit!

[jonesy]

They've been doing it for years in Trucking. GPS,Cameras,Plates (on the road) and Quick Pass (Electronic Reader) for scales. No more "Drive Hard".

[Jer]

There's no need for RFIDs. Don't really need a license plate, even.
Your vehicle itself is enough of a signature to be uniquely identified. A scattering of cameras, a large database, and some decent software would do the trick.