Unions and the Government are ramping up efforts to secure thousands of British jobs after Peugeot pointed to "speedy" cost savings as part of its potential takeover of Vauxhall and Opel.
Vauxhall has its headquarters in Luton in Bedfordshire and employs around 1,000 people in the town making the Vivaro van.
Business Secretary Greg Clark is meeting with PSA Group chief executive Carlos Tavares and Unite's general secretary Len McCluskey is also scheduled for talks with the car industry boss.
The PSA group that owns Peugeot wants to take over Vauxhall's parent company General Motors.
Watch reaction to Friday's talks from Luton with ITV News Anglia's Russell Hookey
It comes as Mr Tavares told analysts and reporters in Paris that the tie-up would transform the fortunes of Vauxhall and Opel by driving through "significant synergies".
Prime Minister Theresa May sought to reassure the French motor industry boss on Wednesday of the Government's continued commitment to supporting the UK car industry, despite Britain leaving the single market as a result of Brexit.
Downing Street said that in Mrs May's call with Mr Tavares, they had discussed their "shared desire to protect and promote" the jobs supported by the Vauxhall brand.
Click below to watch a report from ITV News Anglia's Russell Hookey on reaction in Luton
The proposed deal has prompted fears over the future of the 3,900 workers at Vauxhall's Luton and Ellesmere Port plants who could be vulnerable in any rationalisation programme by the new owners.
It is thought that GM and PSA were eager to sign a deal within the next two weeks to prevent the proposed tie-up overshadowing their presence at the prestigious Geneva Motor Show on 7 March.
GM's European operations include Vauxhall and Opel, while PSA Group owns Peugeot and Citroen.