France dominated by domestic brands such as Renault (27% of cars sold in France in 2003), Peugeot (20.1%) and Citroën (13.5%). Over 70% of new cars sold in 2004 had diesel engines, far more than contained petrol or LPG engines. France possesses the Millau Viaduct, the world's tallest bridge, and has built many important bridges such as the Pont de Normandie. There are 464 airports in France. Charles de Gaulle Airport, located in the vicinity of Paris, is the largest and busiest airport in the country, handling the vast majority of popular and commercial traffic and connecting Paris with virtually all
Millau Viaduct sheath). The exterior envelope of the stays is itself coated along its entire length with a double helical weatherstrip. The idea is to avoid running water which, in high winds, could cause vibration in the stays and compromise the stability of the viaduct. The stays were installed by the Freyssinet company. To allow for deformations of the metal road deck under traffic, a special surface of modified bitumen was installed by research teams from . The surface is somewhat flexible to adapt to deformations in the steel deck without cracking, but it must nevertheless have sufficient strength to withstand motorway