Pitches are taking place this week involving five agencies: Saatchi & Saatchi, Ogilvy Group UK, TBWA\London, McCann Erickson and Rapp Collins, which is teaming up with Burkitt DDB.
Avis is handled on a market-by-market basis by local agencies. In the UK, its agency is McCann Erickson London.
Agencies have been asked to present a unified integrated strategy, which will initially run across its key European markets, including the UK.
The advertising follows the appointment of Profero last year to develop a pan-European online campaign, a new strategy for the group.
The increased use of the internet for marketing and online bookings was part of a wider recovery programme, started last year, designed to return the business to profit. In 2004, Avis Europe posted pre-tax losses of x21.8 million.