buhahaha, im sorry but it i didnt understand where to laugh.
the 155/80r12 being used in Alto, is being used since Altos launch, and before that the same tire was being used in Suzuki Khyber,
The Japanese Alto comes with the same size to. Its just a shopping trolly, to travel from point a to b, not something ure using to make high speed turns,
Even a Japanese Vitz comes with 155/80/r13 tires, same size tires that are offered in Cultus.