Europcar has agreed to buy Europe's largest low-cost car rental company Goldcar, the French group said today, marking its fourth acquisition this year. 

"We are well placed to have completed the bulk of our 2020 ambition in terms of acquisitions," chief executive Caroline Parot said in a statement.

She added that the focus now shifts to integration and delivering expected synergies. 

The proposed transaction is based on an enterprise value of €550m and a post-synergy adjusted corporate EBITDA (earnings before interest, tax, depreciation and amortisation) multiple of around seven times. 

The deal is expected to generate close to €30m in annual cost synergies by 2020 and is seen adding to its earnings per share from the first full year after the deal closes. 

Europcar said it had agreed bridge financing with a large and international banking syndicate to support the deal, which is expected to close in the second half of 2017. 

Spain-based Goldcar in 2016 generated full year revenue of around €240m and an adjusted corporate EBITDA of about €48m.