Yeah, it's usually not a problem. Rent from a national chain and you should be ok. LA to Michigan should doable even with a detour in Arizona. That or Yellowstone would be my recommendations. Chicago is a good weekend trip. Skip the east coast until next time.
ETA: 5 hour drive to Niagara Falls if you don't mind going through Canada.
Also, make sure it's ok to drive with an Aussie drivers license.
ETA: 5 hour drive to Niagara Falls if you don't mind going through Canada.
Also, make sure it's ok to drive with an Aussie drivers license.