Maserati Merak was bought new by the Swedish pop star in 1976, at the height of Abba’s fame.The supercar was specially fitted with a cassette player and microphone that Benny used to make a note of his ideas while on the road.The original Blaupunkt radio remains in place and still works, making the Maserati a must-have for any Abba fan.Andersson, who was married to bandmate Anni-Frid Lyngstad between 1978 and 1981, sold the car several years ago but photos survive of the group beside it.He