..mmm...think the only national "Black tops" are the Daily Mail and the Daily Express,...the Sun is a tabloid and in the lowest level of the three level continuum.....or so I am lead to believe....:-)
I remember that old joke about which demographic group reads which paper:
The Times - by the Nobility and Leaders of the Country
The Financial Times - by the Bankers of the Country
The Daily Telegraph - by the Landowners of the Country
The Guardian - by the Civil Servants of the Country
The Independent - by the University Lecturers and Thinkers of the Country
The Daily Express - by the wives of the Land Owners of the Country
The Daily Mail - by the wives of the Civil Servants and Mid Management Morning Star - by those who want the Country to be run by another Country
The Mirror - by the Blue Collar and lower admin of the Country
The Sun - don't care how the Country is run as long as she has big tits.
slip of the tongue maybe. The traditional division is into broadsheets, blacktop tabloids and redtops. If the Sun is mid-market I don't know what you'd consider downmarket.