dear odooers 
i'am added a many2many field in product.template that contains a car details in lines 
can filter or search in columns of the line in product search bar 

class autopart(models.Model):
    _inherit = 'product.template'

related = fields.Many2many(comodel_name="relate",relation='car', string="", )

class relate(models.Model):
    _name = 'relate'
    _rec_name = 'code'

    code = fields.Char(string="product Code", required=False)
    car = fields.Many2one(comodel_name="cars", string="car", required=True, ondelete='restrict', )
    model = fields.Many2many(comodel_name="models", string="",domain="[('car','=', car )]" )

    start = fields.Char(string="", required=False, )
    end = fields.Char(string="", required=False, )
    rang = fields.One2many(comodel_name="yearrange", inverse_name="product_id", store=True, string="Years")
    pro = fields.Integer(string="", required=False, )