i had similar few years back when i was sellin my uno turbo. a group of 4 asains turned up after phoning me bout 10 times saying he was coming at 7-8 finally turned up bout half 9 asked for a test drive and started trashing it around my estate, then offered me £500.
your always gona get them when selling a performance car its ashame u'll prob get a geniune buyer phone now but u cant sell it cus some prick fucked ya gearbox