hey guys.. just wonderin, has anyone experienced not being able to rev to 8000+? about a week or two ago i accelerated hard in first with a cold engine.. soon after i hit lift (around 7000rpm) my car hit a barrier, like it was at its limit.. i tried again a couple of minutes later but to the same effect.. but about 10 min later, after engine warmed up, it was all fine.. was this a saftey system in the car designed by toyota to stop fools (me) destroying the engine? should i be concerned? people.. first time ever its acted up.. thanks for your input..