Cruisin down the freeway about 100km/hr and in 4th and 5th i slowly put some revs on and it rides up on the clutch or appears too.Up around 500-1000rpm more than it should does this sound like the clutch is weak,any way of testing it,cause only bought the car say 1000kms ago so its been babied.(no burnouts)yet! any ideas on whats going on and the price of a clutch standard and performance replacement.Please help.