In 2011, I sold my 2005 VZ Executive sedan 3.6, 4-speed auto, with 139,000 on the odo.
The only extras were a tow-bar, and some 15" mags. The tyres were OK, and it had a few months' rego.
The standard radio was on the blink.
The BCM was on the way out - intermittent failure to start - common with VZ after five years, and costs $1,100 to replace.
I explained this to the purchaser, and allowed a suitable discount.
I was happy to take $5,000 for it.
If you're buying a VZ - if the BCM hasn't been replaced, then maybe (probably ?) it will have to be replaced soon, and so you factor that $1,100 in.
Even so, my VZ was a great car, and my family & I got a lot of happy motoring out of it.