BEST VEHICLE FOR MEDIUM CLASS PEOPLE

I have brought this car just a week back. Previously, i was having M800. This car is an excellent one. Chilled AC when outside temp about 38 deg C. Tested fuel economy twice: 21 Km with AC /Highways, local 18. Earlier car of mine (m800) was a carbuertor model. I am new to MPFI version. Once you take the feet from Osc, vessel brakes automatically in M800 c.model. but in MPFI also same, but after few seconds, the car starts moving freely (something like uncontrolled). Consulted the local experts, who confirmed this is due to fuel cut off in MPFI causes the vehicle to run without engine braking. Ofcourse, this phenomena is very mild, but have to take care while intending to stop the vehicle in busy traffic otherwise ought to apply brakes to bring into still.