GADGETEMT

OK,
All set, just waiting for order date to place order for 2013 ML 350 Gas as follows and have a few questions:
Dakota Brown with Auburn Leather Interior (What questions will carpets and head liner be Black??)
With the above colors should I pick the Burl Walnut (seems like the common color & Glossy) or the Brown Satin Ash (would make more unique and not a glossy finish)??
- Premium 1 Package (no longer a Prem @ or so I am told, adding same separate options)
- Lighting Pkg (actual reason for a 2013 as unable to find a 2012 with these)
- Lane Tracking Pkg
- Parktronic (another reason going with 2013 for availability)
- Heated Steering Wheel
- Trailer Hitch (not sure yet)??
- HK Stereo
- Running Boards
- Rear Seat Entertainment Pre Wire (really only need so we get memory and lumbar for passenger seat).
- Keyless Go
- Not sure about ventilated seats or massage & comfort seats???
Lastly, saw issue on another post about the Flex Fuel Option (FFV) and ability to use E85 instead of premium, does that mean you could use any grade of gas 85 through 91 octane??

Thanks in advance for any and all input, this resource has been amazing in helping me through the process.

YYZ-E55

Carpet and headliner will be black, yes.