All these features were unique for a small car in 1985 and were developed by the Fiat Style Centre, at that time led by Vittorio Ghidella. The definition of the project Y10 took more than three years of study. It was necessary that this car have a very specific identity to allow it to be unequivocally placed under the Lancia brand. The appointments were originally entrusted to Pininfarina and Giorgetto Giugiaro as well as the Fiat Style Centre. Hundreds of drawings were executed with sketches and scale models starting as early as 1980. Eventually a design by the Fiat Style Centre was selected and developed that best responded to the theme of a car destined for a particular user, "select and elite", a real flagship miniature desired by women as much as a handbag and identified by men as their favorite perfume.