<b:dataTable value="#{carPool.carPool}" var="car" class="editableCarTable">
      <b:dataTableColumn value="#{car.brand}" />
      <b:dataTableColumn label="Image">
        <img src="https://www.example.com/some.png" />
      </b:dataTableColumn>
    </b:dataTable>

<b:dataTable value="#{carPool.carPool}" var="car" class="editableCarTable">
      <b:dataTableColumn value="#{car.brand}" />
      <b:dataTableColumn label="Image">
        <img src="#{car.rowSpecificURL()}" />
      </b:dataTableColumn>
    </b:dataTable>