How can you watch the Bathurst 1000 live in the US?
Go to the website, provided in the related link. Click on Live V8, then choose which one you would rather watch it on. This shows the location of the cars, lap times and Channel 7 Live Footage. It also has a chat room to talk to other fans.
In the US, when it is obviously refering to US currency, it is written simply $1000. When there is any possibility that it is in another countries dollars, it is usually $1000 US and I have seen financial documents written elsewhere in which it is written as 1000 USD (apparently their keyboard does not have a "$")