How much money does it take to own a Nascar team?

This is a hard question to answer, the amount of money spent from Team to Team is enormously different. You must consider the number of people on the payroll, the size of the shops, the number of back-up cars, spare parts, haulers, equipment with-in the shops, "number of Teams", (I know you said "A" Team, but, when buying parts, equipment, cars, etc., buying in bulk or numbers, the aforementioned can be a little cheaper) and of course, the Sponsor(s) for said Team. The Funds provided by the Sponsors for some of your more notable Car Owners/Racing Teams ( like Hendrick, Roush, etc.) can exceed well over 25 million in a single year for a single Team. A much smaller operation con be considerably less, some teams operate on a race to race basis, because of no sponsors, and the shortage of money, out of pocket, so-to-speak. So your answer is: "Very little (less then $300,000.00 to get started, and a race or two), or Tons of money".