new engine, lights, alarm, doors, bonnet, boot, objective;
GetVehicleParamsEx(vehicleid, engine, lights, alarm, doors, bonnet, boot, objective);
(vehicleid, &engine, &lights, &alarm, &doors, &bonnet, &boot, &objective)
vehicleid The ID of the vehicle to get the parameters from.
&engine Get the engine status. If 1, the engine is running..
&lights Get the vehicle's lights' state. If 1 the lights are on.
&alarm Get the vehicle's alarm state. If 1 the alarm is (or was) sounding.
&doors Get the lock status of the doors. If 1 the doors are locked.
&bonnet Get the bonnet/hood status. If 1, it's open.
&boot Get the boot/trunk status. 1 means it is open.
&objective Get the objective status. 1 means the objective is on.
Link : http://wiki.sa-mp.com/wiki/GetVehicleParamsEx