I have the same problem. I havent sat in my car since August and I set in there the other night. It is bad with a door car but with a dragster or altered it is way worse.
I even briefly considered selling my car, but I ordered some exercise equipment instead... 6'4" and 298 isnt the ideal place to be!
Oh well by the time I get to work on fixing up my new to me trailer to haul both cars and get both cars together I should hopefully be down at least 25 pounds...
On the bright side, its the time that refunds are getting close. That means if you have something you want to sell or buy it should happen pretty quick!!!
Hopefully we can all burn off the winter weight and kick some ass this year!!!