True The k10 Series Engine is a failure in all maruti carsGo for the i10 it is a more rewarding car to own and drive. The zen estillo was a failure for a reason it was maruti junk unreliable and unstable at speeds over 80 kmph.
Do bear in mind that once a car hits 40-60k km on the odo a lot of major clutch/engine troubles start.
I sold my Alto k10 in less than 2 months and a friend of mine who bought a estilo sold his brand new car in less than 6 months
Go for hyundai i10....Worth Every Penny u spend.