I don't know if this is 100% applicable to the Viper, but figured I would share this possibility, just in case...
I am a member of a truck club and when we go offroading, sometimes some guys don't have proper tow hooks in the front so it can be difficult to get them out from the front when they get stuck. I purchased a set of tow chains; these are available all over the place. They are the type of chains that a flatbed/tow truck driver would have. They have a set of large J hooks and also T hooks. The T hooks are designed to fit into those slots in the frame that Nader mentioned - I think pretty much all vehicles have those slots because they are used to tie down the vehicle while being transported via truck or train. They are also used to drag a vehicle up onto a rollback.
So, if you are concerned about the need to hook up something, you might want to consider a set of those tow chains. Probably a better solution for the Viper though where you likely don't want a heavy set of chains to drag around would be to just get the T hook itself (or a pair of them) and instead of having them attached to chain, use some high strength rope such as a tow rope or possibly a section of synthetic winch cable (used on offroad recovery winches).
Of course, if you are stranded and need to be winched up onto a rollback, the driver will already have all of this stuff on his truck.
The reason I mentioned above that this might not be applicable to the Viper is the fascia... I've never seen the underside of a Viper, but I know the fascia is very low, so if you are tying into the frame, you probably can't let the other end of the rope/chain get too high, or you will be pulling up on the fascia as well. If that is an issue, perhaps one of those tow points like the one in the classifieds that was mentioned above would be better since it looks like it sticks far enough in front of the car for the cable/rope to not contact the body of the car itself.
Anyway, figured I'd throw that possibility out there, for what it is worth.
