I just bought a new MINICAB and I am trying to make sense of the numbers on the vehicle plate. Model is : U15D011FDL2M Model U15 makes sense, but what is U15D ? I was expecting a T instead of a D. Anything to be learned from the rest of the number? Engine is 3G81 Is this the 550 cc 3 cylinder engine? If anybody can confirm my understanding or add to it, it will be appreciated.