Abstract: With the continuous growth of the number of motor vehicles in my country, the old motor vehicles trading market has ushered in a broad development prospect. At the same time, the national old motor vehicles trading market still lacks a scientific and complete evaluation system. After comparing the appraisal and evaluation methods of old motor vehicles at home and abroad, this paper introduces the selection of old motor vehicles evaluation methods and the determination of evaluation parameters. After analyzing the influencing factors of the replacement rate, an improved calculation formula of the replacement rate is proposed, and the replacement cost method is optimized. This paper improves the existing evaluation system of old motor vehicles, and integrate the results of comprehensive performance testing of vehicles into the evaluation indicators, and the evaluation price is more in line with the actual situation of the vehicle, protect the legitimate rights and interests of consumers, and standardize the transaction order of the old motor vehicles market to promote the healthy development of the old motor vehicles industry.

Key words: Old motor vehicles; Evaluation system; Evaluation parameter; Replacement rate; Comprehensive performance testing of vehicles

摘要： 随着我国机动车保有量不断增长，旧机动车交易市场迎来了广阔的发展前景。与此同 时，全国旧机动车交易市场依旧缺少一个科学、完善的评估体系。在比较国内外旧机动车鉴 定评估方法后，文章阐述了旧机动车评价方法的选择和评价参数的确定。通过对成新率计算 影响因素分析后提出了改进后的成新率计算公式，对重置成本法进行了优化。文章改进现有 的旧机动车评价体系，在评价指标中融入车辆综合性能检测的结果，使评估价格更符合车辆 的实际情况，保护消费者的合法权益，规范旧机动车市场的交易秩序，促进旧机动车行业健 康发展。

关键词: 旧机动车；评价体系；评估参数；成新率；车辆综合性能检测