odoo16/addons/hr_fleet/models/fleet_vehicle_odometer.py

# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.

from odoo import fields, models


class FleetVehicleOdometer(models.Model):
    _inherit = 'fleet.vehicle.odometer'

    driver_employee_id = fields.Many2one(
        related='vehicle_id.driver_employee_id', string='Driver (Employee)',
        readonly=True,
    )