Every now and then I browse Manheim to see what's crossing the auction block.
This may be one of the more interesting cars I've seen so far.
I haven't seen a single 2015 Sierra on the road, yet this one has already clocked over 100k!
It's being sold by GM - perhaps it was running on a 24/7 belt to test endurance?
There's a near-identical one being sold by GM as well with 83K.