There are a lot of variables because everyone has other expenses.
If you make minimum wage but have managed to save up $10,000 ad can buy a good used car great.
If you make minimum wage and put $100 down on a $30,000 SUV with a loan over 5 years your payment is $650, nearly half your income before taxes, and you still have to get insurance. My current car payment is $400 which feels
a little much, at about 10% of my take-home pay. I think half that, 5% of take home or $200 would be a lot more comfortable.
Back when my income was less but my house payment was much
I had a $455 payment and no trouble making it on time. My first new car had a payment of $74/month, when I was making about $600/month, but rent was only $150 and gas $0.30/gallon.
I'd say with the income and rent you gave, if you are an average spender
for food, clothes and entertainment, with paid medical, about $150/month car payment would be good, anything over $200 excessive. Remember too the higher priced car usually means higher insurance cost.