Harlanx33

This is not mandatory, but it can give you a leg up on negotiating costs with a potential purchaser.
There are times when people discover that they own a car that is of no use to them at all.

In instances that the vehicle gained't have a key, you can still take the car's ignition to a locksmith -- they may be able to make a important for you.
Lastly, it is important that you remain calm and focused during the auction.