Oh yes, FOA does have a suspension system as an option. I opted to make my own torsion bar setup like the full size Tiger.

Their RTR models are a bit crude for my taste,only have simple on off speed control.

When I bought mine I had 2 options, either buy a Tamiya, or get a 1/6 from FOA and do lots of work on it. I really wanted a 1/6 but couldent spend the $5000 on a Russian one like from Mark 1