I'm not sure if it has changed or not, but we bought a new M5 about 1 month ago, and at that time the only option for pearl white was the black interior. I know with the 08's the pearl white came with a tan interior, and believe they changed it in 09 so it came with the black interior. We were told you could not change the interior colours. You had to take what they were offering. The only two colours I am aware of that you could get a tan interior with were the copper red mica and the golden sand metallic. If we could have got the black interior with the copper red mica, we might have gone with the red, but instead went with the silver, which comes with the black interior. Still like the silver though.