For A Crappy $500-$2000 Vehicle What Specs Are Important?

We have a nice one but need a secondary beater vehicle. I want to spend the minimum amount possible for a vehicle. All I care about is safety. I need to safely be able to drive up to 1 hour away. This vehicle is meant to be just for getting around my city in 5-20 minute trips and some longer ones 30-45 minutes. What specs do I need to look out for to ensure safety with garbage vehicles priced this low?