car wobbles in low gears, burn smell, noisy transmission

I purchased a new car from the dealership. I drove if off the lot and noticed the car wobbled. I returned the car during a wax service and they updated BCM. This helped a little bit but the problem became worse. Now I hear very loud noise when the transmission shifts. I returned the car to the dealership. They acknowledged they found an issue but still are in the process of troubleshooting the transmission. I hope this can be fixed.

Update from Sep 15, 2015: Update 9/15/15: The dealership found a flash for the PCM and TCM (that was done on last two lines). The technician needed to perform an adaptive drive learn in order to smooth out some of the shifts 1-2 and 2-3 and 4-5.

After I got in my car I felt an instant difference. No wobbles or shift issues can be felt anymore. I'm happy they fixed the problem. As for the burning smell, they said since it's a new car, new pipes which will happen for a little bit until all things break in.