2007 Pontiac: G6 GT 2dr Convertible

I've listed this car a few times and have had lots of interest and a buyer that backed out. So I am relisting it again. 2007 Pontiac G6 GT Convertible. It has an Arizona Restored/Salvaged title. The previous owner was rear ended. I purchased the car and had the work done to be able to put it on the road again. It does have high mileage but runs like a champ. (parts replace: rear bumper, rear part of the truck, tail lights and trunk lid) It was never repainted.
As you can see, from the pictures, the interior is in good shape. Minor blemishes on the outside. The tires are fairly new with less than 10,000 miles on them. There's a lot of curb rash on the rims, they were like that when I purchased the car. The convertible top goes up and back down without any issues.
I know of two issues with the car. It has a terrible oil leak. I'm not a mechanic and I'm not sure where it's coming from. I don't see any oil in the engine compartment, so I can only assume it is coming from the underside. The other issue is after it has been running for awhile, occasionally I can smell antifreeze. I don't see it leaking anywhere inside the engine compartment either. Not sure why I can smell it.
I'm starting the auction at $1000 with no reserve. The car is currently on the road and I can drive it to the nearest trucking company if the buyer needs. I believe I have covered everything. Please feel free to ask me any questions.