Vehicle allowance...ram related.

So I have a 17 Rebel with 156k miles. Love my truck, has all options except a sunroof. Was planning on driving it to 300k miles hopefully....but.

I may end up with a vehicle allowance for work...which I'm on the fence about. They pay us around 700 a month plus fuel card. Which most people jump on but we try to be anti debt. To replace my truck with a new Rebel is around 65k from what I've seen. Idk how much they would give for mine but I'm assuming maybe 18k ish.

Have any of yall ever had good luck with car allowance's and also for those that have bought new rebels what kind of deal have you gotten?