I put 20,000 cash down on a new Chev 2010 Camaro SS, they didn't say anything at the time. Financed 15,000.00. Then the reg letter. From Jimmy Johnson Chev. ( the Hendrick gp. 80 dealers, largest Dlr. gp. in the country) Jimmy Johnson the race car driver, has 25 % from his boss. Anyway, letter said to comply with the Tax reform Act of 1984, they reported to the IRS on form 8300, my 20 grand cash down payment. I was surprised, and now wish I wrote a check. The cash was from two W-2g gambling winnings.