I just leased one with a $11,000 incentive from Kia, from Rick Case in Atlanta, their staff was some what knowledgeable on the EV, but still could not answer all my questions. But all in all they did a great job, much better than the previous dealer I spoke with who told me that the blue lights...
I bought the carpet tiles at Ollie's Bargain Outlet, they are 2ft x 2ft and cost $1.79 each. I purchased extras in different patterns to change the look inside the car. There are a couple of locations in Raliegh, NC.
I made my own floor mats after seeing how quickly the stock light gray mats get dirty. I purchased 2 rubber backed carpet tiles traced the pattern from the stock mats on the back and cut out with a razor knife. The whole project took about 45 minutes. Not sure how to upload pictures.