it is tough to answer the question "How much does one have to make . ?" Each buyer has his own comfort level for getting debt. He could also have to account for basic living costs and any extra costs for buyer products, education, and other financial responsibilities. earning is a relative factor, really. The person who spends as much as he makes may not be able to pay for a higher class auto, whereas his more frugal counterpart may.
I can not speak to the A6, but I know that the A4 depreciates quickly. Plus, here in the midwest they are liked cars due to AWD, making them inexpensive to buy pre owned.
You may want to talk to the question from the stance of, "How much do I have available for a car payment?" Then, research average retail prices for new and used models, through any number of online resources Kelly, as an example . Examine interest rates and loan terms to see if you are comfy with the monthly payment and length of the loan.
Good luck.
