I have a swift 12k driven. But since new I am experiencing a strange noise from the transmission. When I accelerate at around 30-40 speed range I hear a whining/crying type sound for about one second. During that time the car slightly jerk and rpm also drops very slightly. After that about 50-60 it becomes smooth and noiseless. I feel like when the cvt shifts to overdrive ratios (I know it doesn't have overdrive gear) it hesitates and makes a sound for a slight second then everything comes to normal. Got it checked from Suzuki master motors, during road test the technician said it's normal and all cars do this. Posting here to get experiences of other swift owners just to be sure if it is normal.