Thanks for the reply , its my second car ,i dont know alot abt cars

vibration like driving at 100 120 km/hr i feel either race or unstable road on highway (which is usually smooth in malaysia )

i feel it in my feet , shouldnt it be stable

i talked to few experienced friends they said change tires to 15'' add another carpet etc

sorry couldnt explain better , i was expecting smooth ride like new car has better suspension so i wont feel the jerks specially on a smooth highway at 100 to 120km

Our car sounds like train when going up to 140kmh. Engine sound is really loud. And so far Max I tried is 160kmh only. Anyone hit 180 before?

majority Persona VVT user change to 16'' wheel... 

mine changed to R3 wheel 16'' since Sept 2016, already 8 month, performance and FC not bad.... 100% town use