Actually just by looking at the price, it seems like a reasonable buy but of course, you can always bargain! if you want to get the car, just make sure that you send it for an thorough inspection first.
Not advisable to get those COE renewed Beemer cos most of them are trash: 7-8 owners!.
BUT this one looks like a reasonable deal for a 4 year old Beemer.
Cheers.