It is well known now that a warmed up engine consumes less fuel using stopping and starting compared to idling for a certain period. Since the first stop-start system introduced in 1983, more and more vehicles have been equipped with this automatic engine control system. Recently, it was found that there is strong correlation between engine resting position and engine start time. The utilisation of the synchronization time with the prerequisite of engine stop position prior the engine start request was shown to reduce start times. Hence the position control of an engine during shutdown becomes more significant. This paper presents an experimental study of the positon control of a turbo-charged four-cylinder gasoline engine on a test bed. Various control authorities such as throttle control, alternator control and wastegate control have been investigated and compared. A position control using a combination of this four control inputs has been proposed and experimentally proved to be very efficient. A nonlinear physical model has been developed and used in the design of the controller. A detailed procedure of engine test and the identification of the model parameters has been introduced. Four control strategies which are nonlinear PID control, slide mode control, dead beat control and optimal control have been implemented and tested on this system. The control target is minimizing the stop time with two pistons stop at TDC. The experimental results show that all four control systems are able to reduce the stop time and increase the statistical TDC stop position. However, the optimal control gives the least statistical stop time while the dead beat control has the lowest tuning effort.