Workers from Peugeot's Ryton plant are to protest at the launch of the new 207 model at a Coventry dealership. Union leaders said the launch showed a lack of social conscience by Peugeot, whose plant near Coventry is scheduled to close with the loss of 2,300 jobs.
A company spokesman said the protest could not be justified.
The action will tie in with a series of national press advertisements urging people not to buy Peugeot and Citroen cars if the Ryton closure goes ahead.
Amicus and the Transport & General Workers Union (T&G) say full-page advertisements have been taken out in Friday's Daily Mirror and the Guardian.
�1 million campaign
It marks the start of a �1 million campaign to fund a series of press adverts and 48-sheet advertising hoardings close to Peugeot and Citroen sites.
They are aimed at pressurising management to consider a union plan to save production at Ryton.
Thursday evening's protest will take place at Darwin Motors in Holbrook Lane, which has been the scene of previous protests.
Jim O'Boyle, the Transport and General Workers' Union convenor at the plant, said: "Once again Peugeot are showing their real side.
"Whilst sacking 2,300 people in Coventry, they are rubbing workers' noses in it."
John Goodman, spokesman for PSA Peugeot Citroen, said: "Our whole approach to dealing with this has been very mindful of the sensitivities in what is a very difficult time for our employees, in no way is this rubbing people's noses in it.
"I fail to see any legitimate reason for this action against a Coventry business."
The company also points to continued employment of 5,000 people in the UK, including 1,000 people in the Coventry area who will remain in employment when Ryton closes.