So I've been looking into the GX460 and trying to decide between the Premium and the Luxury model, but I couldn't find any information regarding to the air suspension from lexus.com.

I understand that the actual air suspension is only on the rear axles of the vehicle meaning it is probably not design for clearance but more for towing and weight purposes.
My questions are,
1) Is the air suspension added onto existing shocks? meaning does it still use shocks from the Premium model and adds the bags to raise the frame?
2) Are Adaptive Suspension actual AVS shocks or just the firmness of the bags? And is there real difference between the firmness of the shocks?
3) How difficult is it to install aftermarket shocks or suspension parts on Luxury models vs the Premium model?

Also is Mark Levinson speakers included on all 2018 models? I can't seems to add it under option.

Thanks in advance.

 

The mark levinson system is not included in the premium package.

 

So it is standard on Luxury? lexus.com doesn't really explain much.

 

 

To briefly answer your question:
For luxury, it is AVS shocks with electronic dumping control. Air bags are for rear only. ML audio is part of luxury package.

 

Yes, I believe there is a difference. We purchased our CPO 2015 about 13 months ago. It is a Luxury and we looked at several Premium models too. My wife and I agreed that the Luxury provided a better ride around the Dealership (on the test drives). BTW, there only seems to be a slight difference in the ride settings (comfort/normal/sport).

Plus my sister-in-law just purchased a 2018 without the air/AVS suspension. Even they claim our model rides smoother. In fairness I have Michelin LTX and theirs came with different tires…so perhaps that is accounting for some difference too.

 

Not sure with other model years, but on 17' and 18' ML audio is an option only with luxury package. As a matter of fact, I have seen 1 vehicle on the dealership lot that has luxury package but without ML audio.

 

Yes, luxury suspension does make a big difference! Big enough of a difference for us to trade in a 17' GX premium for a 18' luxury.

 

There is a fairly noticeably difference on mine between sport and comfort. Enough so that I feel it corners better in sport mode. I normally run mine in Sport though.

 

Yes, I have seen that as well. It just wasn't available to add on their website.

 

So is the air bag itself a part of the shocks on the rear?

 

There are AVS shocks plus air bags at rear.

 

Shocks are separate from the air bags