I once was waiting for parts to come in on a Chevy I owned and was given a loaner to use in the meantime. However, the issue was I had a road trip planned, so I asked them if I could take it on the trip, telling them where we were going and the estimated mileage. Did it in an email and they gave me the green light.

They were not happy when I brought the car back with nearly 4,000 more miles on it. They tried to fuck me over with additional charges, but I had the rental agreement and proof of approval via email so tough luck for the SA who gave me the go-ahead I guess ¯_(ツ)_/¯

New this had an MSRP of $89k, I got it used Jan 2023 for $31500 with about 60k miles.

For a nicely optioned one it seems to be around 25-29k on the G30 Facebook group pages.