After 2 days of having my car the oil light came on, checked the dip stick and put in a pint of oil to fill it.. the oil light stays on, but only when the key is turned while it's running the light stays off.. On the weekend the car was driving perfect, on Saturday night I was driving and the car just cut out, I pulled over put the ignition on and it started 1st time drove back the house and it cut out again, I was then towed a few metres then I decided to crank it and it started, drove around the block but there was a bit of a lag in the throttle response.. the car cut again.. took the spark plugs out (they were very dirty) cleaned them and the car started again, drove around the block and still had a lag in the throttle.. car won't start since then.. please help need to sort it out ASAP!?