I bought a Maruti Alto Lxi 6 months back. After the second service, the car has become unsteady at 60 km/hr or higher speed, more in 5th gear. It wobbles and I took back to the dealer. They kept the car for 4 days, changed the tyre and gave it back but the problem is worse. They told me in between that they could not diagnose the problem. Funny part is it was ok before the service.