I give you the chase caravan of the the near future (2010)...
...and my new chase vehicle
But seriously, when I saw this thread I had to take a double look to see if it was just a joke or for real. I know traffic gets bad out there with all the chasers but are we really having to debate whether or not we should start playing bumper cars because the storm surprises us and puts us in harms way? Imho if you are getting so close to the storm that you are now having to ask your self if you should have to possibly ram your way to safety because the person ahead of you isn't doing 60mph then you shouldn't have even put yourself in that situation in the first place. I have seen many times where cars are pitted and as a result flip over as they go off the road. What happens where you ram or pit someone and they get killed when their suv flips and all because you panicked and thought you were in danger only to have over reacted due to the adrenaline rush.
Priority #1 for us as chasers should be to be the eyes of the public so they can be better warned. If you are purely in this for the adrenaline rush of getting to close and then having to back the f?@# up I think you should just stay home and off my streets as if you are trying to ram and pit your way to safety you yourself have become a bigger danger than the wedge that may be bearing down on you. Our image is already bruised and battered by the yahoos who hang out their windows to film and set up tripods in the road and sight see damage and only get in the way of emergency crews, we don't need a few renegade crazies pushing through traffic with their brush guard. Try passing in the grass if you have to, but hitting someone because they aren't fleeing as quickly as you, well I find that absurd.
Now on the subject of parked cars under overpasses, if all the divers are clear of the cars and pushing one out of the way is the only means of escape I would consider it, but only after ALL OTHER OPTIONS have been exhausted and I would never hit them at speed but so far I have yet to see a instance where i was 100% totally cut off from escape.
DISCLAIMER: Since this is the interwebs and its all super serious business... I'm not trying to bash any poster or person with this post I am merely voicing my opinion which we all should freely be able to do.