Air Suspension in Innova. Possible?

This weekend we went on a trip to Theni from Chennai in our Innova. It was a 1100 km trip. While returning, everyone were sleep all tired from the travel and the work that we had at Theni. I was driving, it was around 1am, call it Sunday night or Monday early morning, overtaking many buses, trucks and a few cars. When i overtook a Volvo bus was when I got thinking about this air suspension, I have traveled like million times in Volvo buses, they have very comfortable and smooth drive – reason – Air Suspension. Why cant my Innova have one? I know Merc S Class has air riders. This was the thought that was running in my mind for the next 2 hours till we reached home and sleep took over me.

Now it is got me thinking again. I know and have seen many cars in US having aftermarket air suspension fitments.
– Is there any one who can fit it as a after market fitments in India?
– Has any one in this forum done it?
– Is is possible realistically?

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