Well the record was taken by Red Baron, an F-104 'Bitsa' built from recovered airframes and parts by a US civilian. I understand that BAE once looked hard at sending an F3 to the low, low, low desert secure in the knowledge that the aircraft could easily exceed this record, but could not justify the costs. I believe that the Tornado (without LRMTS, without the intake mod, etc., so probably an F3) is the fastest low level jet in service.