PETALING JAYA: With shop rental prices going through the roof, some business owners have decided to forgo the four walls and venture into the “meals on wheels” business.Malaysian Food Truck Association chairman Datuk Mohamad Zaini Md Taha said a second-hand truck head with a built-in kitchen would cost around RM30,000, less than one-third the RM100,000 initial cost of starting business in a shoplot.