Hi

   I  just thought you must have had some other buyer's interested in buying it from you, then i thought the best way to outbid them is by offering you an additional 800 to your own asking price you put on the add.  I'll not be able to come for the inspection my self due to present Job location, But i have a pick-up agent who will be contacting you about when and where the pick-up will be taking place and that will only be after have completed the payment transaction with you my self .
 
I'm actually purchasing it for my Parent residing in Ontario as a surprise, so please if you don't mine tell me a little bit more about the present mechanical condition and how often you do the service and the history  then we can take it from there.  

 I will be waiting to read from you and if we can come to a quick agreement i will proceed with the payment immediately..

我给了一个比市场价低的价格卖我的车，然后收到一个邮件，我觉得比较可疑，大家认为呢？