Just book a national car last week and this week Maybank personnel call up and inform that the car interest loan went up until 4%! I was like what the h***? All this time the car dealer inform the flat rate was 3.75% then suddenly this sudden jump of interest? Can the bank do that?

I guess if 3.5% then your family must have bought it for a 5 year loan period. Call up my agent and he inform me that all bank by today already increase their car loan rates to 4% (if 9 years I think).