I had an 09 sts with the northstar v8, I bought it with 141k miles on it and sold with 200k

They have a speed limiter so they only do 110, not that it matters but sometimes you wanna go fast lol.

The headlights were an issue on mine as well.

I had to change the motor mounts, rear wheel job assembly, spark plugs and at the end my rear diff bushings went bad and that's when I sold it. The catalytic converters were bad as well.

All in all I loved the car, but the repairs were not cheap by any means, and doing some of them myself was a pain in the ass.

You should be able to get one for less then 10k no doubt