A few a8 4.2 questions...again!

[mazm3]

So, im rather interested in my A8 at the moment. Looking through the paperwork there are a few things that crop up.

On the build sticker the engine code "ODU" has been crossed out by what i assume was an Audi dealer, and it has "ABZ" written next to it with 10195 miles written there aswell. Has this had an engine change?Why change it to a different type engine?

Also it states "A8 LIM" Is this long wheel base?

Build date is actually September 1995 not 1996 as first thought.

Options seem to be pretty mega

Electrically adjustable REAR seats
Heated REAR seats
Electric rear blind
Electric REAR headrests
Rear blinds on windows
Memory front seats
Recaro seats (heated)
Seat belts electrically adjustable
Electrically adjustable steering wheel
Bose
Solar sunroof
Electric fold in mirrors

The car is a 4.2 quattro sport. Are any of those options standard?

The is one blank button on the dash but looking at the manual it shows an ASR button to be there for the FWD models? Bugs me i have a blank

(looked for the options list Laird uploaded, saw the thread but couldnt see the lists?)