[ryandrake]

The EPA can say "tamper resistant," but I call it "repair resistant".

I object to the word "tamper" because implies that even though I am the owner of the car I somehow require authorization to work on it.

[tbrownaw]

Eh, if it's strictly limited to regulatory compliance requirements that might make sense. Make sure it takes significant effort to turn off the public-safety features that cost you a bit of efficiency but also stop you giving all your neighbors cancer and all that.