Melanie Hall murder detectives are “encouraged” by the response they received after an appeal for information on BBC Crimewatch last night.
They are looking for information on a white, hard-top VW Golf GTi, C752 CYE, that was not registered with the DVLA between April and August 1996.
Melanie, 25, was killed after disappearing from what was then Cadillacs nightclub in Walcot Street, Bath, in the early hours of June 9 that year.
Her remains were found on October 5, 2009, in Falfield, next to a slip road off the M5 at the Thornbury junction.
DS Mike Courtiour, who is leading the inquiry, said: “We had a reasonable number of calls that are of interest to us and which warrant further investigation.
“We are still keen to reach as many people as possible who may have information about the white VW Golf GTi between April and August 1996, particularly people from the Pentwyn area of Cardiff.”
In October last year, detectives asked for information about another white VW Golf GTi – a soft-top Cabriolet – that they had recovered.
Mr Courtiour said his team is still investigating whether that car is relevant to the investigation. They are also still carrying out forensic tests on blue rope they have recovered, similar to that used to bind Melanie’s body.
A 44-year-old Bath man has been arrested on suspicion of murder and bailed until April, pending further enquiries.
Anyone with information should call 101 and ask for the Operation Denmark Incident room, or ring the incident room direct on 01179 455808. Alternatively, they can contact Crimestoppers, anonymously, on 0800 555111.