It could be without TRIM.
Windows XP does not support the TRIM command so after a short while your SSD will be very slow. It seems an extra small partition would just exacerbate things.
Not saying that is the problem you are having because you are using memory during your driving. But it is just one thing I noticed and I would get a trash collection program as soon as possible before that is another problem you would have to deal with. http://www.maximumpc.com/artic ... /white_paper_trim_command
When I'm driving the brakes are always shitty. The pedal has so much travel and it slips a lot. I have a headboard on my bed and sometimes when I'm turned around I'm stomping on the brakes and it is slamming it in to the wall.