Thanks guys- the creaking sound wound up a piece of the fender liner rubbing, fixed easily. He didn't tell me what the HUD issue was, but it's all good now. I made the deal and will cut him a check and pick it up on Saturday

This car is an 06, are the LS4's from that vintage reliable? I have no problem disabling the DOD- I didn't buy this car to baby it all the time anyway. I'll have to learn more about how to get rid of that- I figure a tuner or a program I can use with my laptop should do the trick.

My only intended mods drivetrain-wise are an intake from AirRaid, or similar and a tune that maximizes that and firmer shift points.

My 2000 GTP has a reprogrammed ECU/TCU that lets it take off in 2nd gear if you leave it in 2 so you don't spin your wheels in the snow too much. I'd imagine the V8 in this car would benefit similarly.

I am currently looking at Apple Carplay stereos on Crutchfield to see what's available- I'm spoiled with making calls while driving in my GTP.

Speaking of that, do I keep the GTP too? Space is at a premium. But I hate parting with cars.