Is it a crime to drive an old car?

A policeman stopped me for no particular reason..seatbelts-check. Looked at road tax check. Asked me to open my boot, there were beach toys in a bag, a table cloth and some court shoes just in case i need to run into a meeting (Can't go in my Mary Janes). He asked me who were the people in my car, I said both are my daughters..and I said please sir my daughter has 5 mins to catch her bus to college. He said better late than early. He was still looking for faults. My car is an old Wira with a penang plate number..he said are you from Penang, I said yes, but I live here, this car is my Dad's. He was still looking for something...then he asked for my IC..and he took it to his patrol car. I got out of my car and showed him her bus ticket. She had 2 mins left. Then he said, ok, you go, she is late....I was thinking, WHAT WAS THAT ALL ABOUT?