I believe your car went into "fail safe" mode. You may want to get it scanned to see if a code is stored. Any Autozone will do this for free. I had this problem on my Mini Cooper S when it was brand new and was caused bu a loose clamp on the intercooler. At full throttle it would release some air and confuse the computer which then threw it into fail safe or limp mode. Starting and turning off the engine a couple of times will clear this if the problem isn't still present. When this happened to me I got no CEL light either. I thought i had blown it up at first.