AMG sports pack with ON&OFF road pack




In the USA/Canada/UK can you order the AMG Sports package (SP1) combined with ON & OFF-ROAD package (430)?
For the USA I know the ML550 is standard with the AMG sports package, so can you also get ON & OFF-ROAD with it as well?
Here in Australia the AMG pack isn't standard on any MLs, it's an optional extra at $6900 (plus stamp-duty) for ML250s or 350s, but only $4200 (plus stamp-duty) for ML500s because Airmatic is standard on the 500s. They won't combine the two packages here and I'm not sure why. It could have something to do with our option for AMG sports pack is standard with the 21" AMG 5-twin-spoke wheels (757).
I have ordered my ML500 (same as 550 in US/Canada) with the ON & OFF-ROAD package, and fortunately I didn't want the AMG pack anyway, but I am considering changing my wheels to the 21" AMGs when it arrives as they look heaps better than the 20" AMG 5-spoke alloys (758) which are standard on the 500. I think in the USA the standard wheels on a 550 are only a 19" wheel.
I asked my sales rep about this & she was unsure, but guessed that maybe any 21" wheels won't work with the ON & OFF-ROAD package as they might be too big!
Any thoughts/comments anyone please?
Thanks in advance!!

P.S. Here are the specs for Australian MLs if you are interested:












Here in the states the 21" will set you back somewhere over $1,000 per rim. On my R Class the 21" AMG they want $1,045 each which is actually pretty reasonable. But the S Class 19" AMG is $1,200 each. So your mileage may vary on exactly how much the MLs are. Just keep an eye for takeoffs in Australia and you should get them at a pretty good deal with new tires.
And I presume you realise Alloy rims do not flex, but your Visa card does.
Now comes the sticky question.
Where do you get the smaller rims for a W166?
I have just been told by the Nokian distributor that W164 rims foul the W166 caliper.



