i just want to have a phone in car with a number and able to phone out at a low rate
Hi Eric. Check out Public Mobile plans to know which plan best fits your usage. As for a phone, again, totally depends on your usage. Are you just planning to send and receive calls and text? Then just get a non-smartphone. Or do you want to use it for Navigation apps? Then consider getting a budget smartphone.
Here are some guides that can help you choose:
Hope that helps!