It's Obsidian Black and Sand Quartz Leather.
Only booted it once, trying to catch up with an M3. The power difference is not that much of a difference from the CL500, less pulling power, but it still goes nicely. Still nearly a 4 litre, and sounds more 'throbby' than the 320 engines which is good. The ride is quieter than the CL, and engine noise is less than the CL too.
Doriant: The 18" you have wont fit The offsets on the new SL are different to the CL and old SL which is a shame.
The stainless plating is standard, not sure whether its new for 2004 mind.
The are no rear seats, unless a toddler could fit in, however you wouldn't want to put anyone there as the roll over bar would kill them if it went off
One thing I will say, the speaker sound is awesome, not sure if they fitted BOSE by mistake, but easily a two fold improvement over the CL500 sound system.
The active lights are also pretty cool. When you switch them on, they come right up like pop up lights in a MX5! Better and brighter than the CL500 which is good.
Just wish it had the CL swing forward doors, as getting in and out without scuffing the leather is nearly impossible, even for my thin frame!
PS, if anyone is interested in Pentagon tints (best in the business in my opinion) I get a 25% discount.