The BBC has been accused of fuelling tension between the Scots and the English over the screening of a St George's flag-trashing stunt.
The experiment by producers Newsnight saw a car decorated in England colours parked in Glasgow's east end to find out how it would fare.
The footage showed thugs throwing bricks at the Vaux-hall Astra and jumping on the windscreen.
The stunt was part of a debate on Scottish-English relations during the World Cup.
It followed a report by a Newsnight journalist which had seen him engage in "light-hearted banter" with Scots he met in Glasgow and Edinburgh while wearing an England shirt.
BBC bosses received 24 complaints about the programme.
Kenny MacAskill, justice spokesman for the Scottish National Party, described the car experiment as a set up.
Mr MacAskill said: "The bulk of the programme was actually quite funny, with good banter between the reporter and those he met.
"But the end was just a set up. If the car had been set up in any blighted area - parts of London or Birmingham or wherever - it would have been trashed.
"If it had been an Aussie campervan or a Polish immigrant's car a similar fate could have befallen it. The BBC did seem to manufacture it."
The MSP said the vandalism had taken place not because of the flags but because of "the nature of the kids."
The Newsnight debate was sparked by incidents in Scotland where England flags attached to supporters' homes have been destroyed.
The BBC said that it had not received an unusually high number of complaints about the programme.
A spokeswoman said: "Following incidents when England fans had been attacked for wearing England emblems in Scotland, Newsnight carried out an experiment to see how a car decorated in England colours would fare.
"For the most part the banter was light hearted and in good spirits but when the car was left unattended it was attacked and damaged." ..SUPL:
