Marathon de la Route
The Marathon de la Route was a series of road rallies held in Europe between 1931 and 1971, including Liège–Rome–Liège and Liège–Sofia–Liège rallies held on public roads and closed-circuit races held at the Nürburgring from 1965 until 1971. It was reserved for so-called touring cars. Many renowned drivers participated such as Olivier Gendebien, Willy Mairesse, Lucien Bianchi, and Jacky Ickx.