卖车协议书的格式和内容可能因地区而异，但以下是一个基本的模板，以确保其具有法律效力：
标题: 车辆销售协议 甲方（卖方）：__________________ 乙方（买方）：__________________ 根据《中华人民共和国合同法》及相关法律法规的规定，甲乙双方在平等、自愿、公平、诚实信用的基础上，就甲方向乙方出售车辆事宜达成如下协议：
第一条 车辆基本信息 1.1 车辆品牌：_________________ 1.2 车辆型号：_________________ 1.3 车辆识别号/车架号：____________ 1.4 发动机号：_________________ 1.5 车辆颜色：_________________ 1.6 车辆出厂日期：______________ 1.7 车辆购买日期：______________ 1.8 车辆行驶里程：______________ 1.9 车辆上牌日期：______________ 第二条 车辆价格及支付方式 2.1 车辆价格为人民币（大写）：_________________元整。
2.2 乙方应在签订本协议之日起____个工作日内将购车款支付至甲方指定的账户。
第三条 交车时间、地点及验收 3.1 甲方应在收到乙方支付的购车款后____个工作日内将车辆交付给乙方。
3.2 交车地点为：_________________ 3.3 乙方应在交车地点对车辆进行验收。如车辆在验收时存在质量问题，乙方应在验收后____个工作日内向甲方提出，双方协商解决。
第四条 质保服务 4.1 甲方为车辆提供____年或____万公里的质保服务，具体以车辆说明书为准。
4.2 如车辆在质保期内出现质量问题，乙方应通知甲方，甲方应负责维修或更换。
第五条 违约责任 5.1 如甲方未按照本协议约定的时间交付车辆，每逾期一日，甲方应向乙方支付违约金人民币____元。
5.2 如乙方未按照本协议约定的时间支付购车款，每逾期一日，乙方应向甲方支付违约金人民币____元。
第六条 争议解决 如甲乙双方在履行本协议过程中发生争议，应首先友好协商解决；协商不成的，可以向合同签订地人民法院提起诉讼。
第七条 其他约定事项 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