I too was concerned about this issue(I live in the metro Detroit area).I have a 1LT/RS Camaro on order.Originally i was gonna order the 6-speed manual,but my Camaro will also be a daily driver,and a manual does not work well in the snow on a RWD vehicle.
I remember having a 78 Chevy s-10 pickup(5 speed,2wd)It did alright in the snow,but it did even better when i added 200 lbs of sand(4 bags,50lbs each)to my pickup bed.I thought i can apply the same principle to my Camaro when the inch's of snow start falling.How-ever i would wrap the bags in plastic some-how,so as not to spill in my trunk(what a mess that would be).
I ordered my Camaro with a Automatic,which would be better for winter driving.I do believe the Auto has "traction control",and that electronically controls engine rpm and wheel speed,kinda like ABS for your rear wheels.