What exactly are "Parking distance sensors rear"? (this is in addition to the backup camera). What are "Card key power locks" (I understand what remote keyless entry means).
Parking sensors. I didn't think any Prius came with them or why you would want them with a camera. Never heard of them. Are you looking at a Prius?
Parking distance sensors are short range distance measuring devices that are installed in the bumper. While they were not part of package #8 in 2006, they certainly could have been installed by a dealer. I think they beep when a sensor detects something within a foot or so (like the car behind you). Here's a link to one vendor of such a device: Welcome to SMART PARK Automotive Technologies As for "Card key power locks", that sounds like the SKS (Smart Key System). The SKS system allows access to the car simply by having the keyfob near the door. Even though the remote has lock/unlock buttons, you don't have to use them if you're close enough to the door and there's no radio interference. If they really mean a card key like a credit card, then that's something completely different than anything that Toyota uses on the Prius.
Thanks. Yeah, I don't think this particular Prius has parking distance sensors. My brother's BMW M5 had them.