The color of the inside of the tailpipes seems very dark; not quite black but very dark gray. I'm used to seeing a light to mid-gray color on other cars. My '06 roadster only has 1800 miles on it. Could it be running rich?

Also, I seem to be buring quite a bit of oil, over a quart already. This could just be due to the break in (by the book), but I'm not sure.

Any observations would be appreciated.

Thanks.

Ken