Extreme Heat/HOT coming from front drivers floor board and center console.

Hi, sounds like you got two different issues. One the Thermostat might be stuck shut causing the coolant to stay in place thus the temp guage isn't moving when cold or overly hot. Make sure your coolant fan comes on around 105*C and make sure your heater core isn't cracked or blown (you can smell coolant through your heater&A/C vents. Next problem your transmission might be suffering the famous Volvo 2001 curse at over 200k miles. Try flushing the transmission properly with the correct fluid: if your dipstick is all the way on the bottom and a small little thing, it'll use the special Volvo specific transmission fluid or a Mobil1 JWS-3309 Synthetic fluid equivalent. If it's the square/rectangular and pretty long it'll the standard Dextron III fluid you find anywhere at your automotive parts store. (Just a warning flushing will not solve your issue 100% but it's worth a try to get some more life from your ailing transmission) Good luck, Sam