The optional leather in the E Class is rough and grainy enough to me to not feel much different than MB Tex. I think Dakota feels more premium to the E Class optional leather. Nappa is on a different level from the E's available leather option, so the extra cost of it is valid IMO.
'13 F10 BMW 535i Sport
: Jet Black/Black-Anthracite : Premium & Technology Packages/Sport Auto Trans/Camera/Park Distance Control/Heated Seats/Tinted Windows/Blacked Out Markers/Performance Spoiler.
Ex M-B's: '11/'10/'06 E350's w/ AMG Sport Package, '02 S500 w/ Every Option.