155/70 R13 does not come..In 155, u will get 155/80 R13.'Usual brands in this size are General,Mirage, Hankook and Kumho
Only problem I am facing in using 175/70 R13 is that it does not comes fit in Spare wheel space in hatchback boot so u will always have to keep 155/80 R13 as your spare wheel
Some denter alter spare wheel space by hammer to accomodate 165 or 175 tyre but never do that as it will disturb Chassis alignment balance and weight balance
In case of puncture, I have to keep 175 tyre on rear seats
Alloyrims r best option for any car as it is combo of different metals making it Light weight, an ideal scenario