The brand new car - worth more than £8,500 - was stolen from Murketts in Stukeley Road just after 1pm on Sunday, April 22. Officers have said that a couple visited the showroom on Thursday, April 19, before driving away in a Mercedes coupe. Detective Constable James Bowen said: I would urge anyone who recognises these people pictured to call police as we believe they could have important information which could assist our investigation. I would like to speak to anyone who saw the man and woman on the Thursday at around 3.30pm, or the man and woman from the Sunday. They wore dark clothing and walked along Ermine Street and Stukeley Road from the direction of Dunelm at about 1pm on Sunday. The man who visited on the Thursday was white, about 5ft 10in or 5ft 11in tall, slim with light brown thinning hair. He wore a grey jacket and with epaulettes on the shoulders, blue jeans and brown shoes. The woman with him was white, between 18 and 20, about 5ft 5in tall, chubby, with fair hair in a ponytail. She wore a black and white coat and dark trousers. The woman on the Sunday was blonde and wore a black coat, light blue jeans and was talking on a mobile phone. INFORMATION: Anyone with information should contact DC Bowen on 101 or Crimestoppers, anonymously, on 0800 555111.