I used to come to this site all day for years! Haven't been back for a while, but I still have my two, window-attached bills. I kind of remember that in 2008 the best one had lether and perhaps that's all. Then, the next one down had the blue tooth and all the fancy stuff in the computer giz. Then the next one down might have had nothing other than the computer without any added features. The number 2 and 3 did not have the super fancy lights, I believe, and that's good for them. Number 3 did not have cruz control, I suspect. I'm just wasting your time here, others will know it all.
Base is no SKS key or back up camera. Why anyone would order a base is beyond me. Package 2 does. Touring has leather and fog lights and Hids & Nav & Bluetooth.
Assuming yours is a 2005: Package 1: Driver/passenger/rear side curtain airbags Package 2: Anti-theft system, auto-dimming rearview mirror with Homelink programmable remote opener + Smart Key System Package 3: Driver/passenger/rear side curtain airbags, Smart Key System Package 4: Driver/passenger/rear side curtain airbags, Smart Key System, HID headlamps, integrated foglamps, VSC Package 5: Driver/passenger/rear side curtain airbags, Anti-theft system, auto-dimming rearview mirror with Homelink programmable remote opener, Smart Key System, JBL 3-in-1 AM/FM/Cassette/6 CD w/9 speakers Package 6: Driver/passenger/rear side curtain airbags, Anti-theft system, auto-dimming rearview mirror with Homelink programmable remote opener, Smart Key System, HID headlamps, integrated foglamps, VSC, JBL 3-in-1 AM/FM/Cassette/6 CD w/9 speakers, DVD navigation w/ bluetooth phone via product brochure at Toyota Prius Touchup Paint Codes, Image Galleries, Brochure and TV Commercial Archives The option packages vary depending on model year in the 2nd gen. The Touring variant wasn't offered until the 2007 model year.