[Basicz]

pawn Код:

static
    bool: engine[ MAX_VEHICLES ] // i wouldnt use char arrays here, vehicle are about 2000++
;

public OnVehicleSpawn( vehicleid )
    return engine[ vehicleid ] = false;

COMMAND:engine( playerid, params[ ] )
{
    engine[ GetPlayerVehicleID( playerid ) ] = ! engine[ GetPlayerVehicleID( playerid ) ];

    SetVehicleParamsEx( GetPlayerVehicleID( playerid ), engine[ GetPlayerVehicleID( playerid ) ], -1, -1, -1, -1, -1 ); // Dunno arguments >.>

    return 1;
}