Hi,

This can be done by adding an Iframe code in a standard view of type form like below as the docs says:

QWeb views are standard QWeb templates inside a view's arch. They don't have a specific root element. (Source)

<record model="ir.ui.view" id="your_view_id">
    <field name="name">YourViewName</field>
    <field name="model">fleet.vehicle</field>
    <field name="arch" type="xml">
        <iframe src="http://your-iframe-url.com" marginheight="0" marginwidth="0" frameborder="0" width="100%" height="750"/>
    </field>
</record>

After that you have to create an action that opens that view and a button that calls that actions like below:

<record model="ir.actions.act_window" id="your_vehicle_tracking_action">
    <field name="name">Tracking map</field>
    <field name="res_model">fleet.vehicle</field>
    <field name="view_mode">form</field>
    <field name="view_id" ref="your_view.external_id"/>
</record>

<button name="%(your_module.your_vehicle_tracking_action)d" string="Track vehicle" type="action" class="oe_stat_button" icon="iconapp" help="Tack your vehicle"/>

Hope this helps !