on the 06’s there was a brake upgrade option, right around $3800. It’s now standard on the 07’s Which is why the MSRP magically jumped up about $4k from 06-07. I just checked Chevy.com to see for myself.
Ya, the $8k below sticker was erroneous rumor spread on the net. Cheapest I’ve seen so far is about $67k Which is a 1LZ package