The coaches of the CGO carried twenty-four to twenty-six passengers and ran on thirty-one different lines. The omnibus system was overwhelmed by the number of visitors at the 1867 Exposition, thus the city began to develop a new system of tramways in 1873. The omnibus continued to run, with larger cars that could carry forty passengers in 1880, and then, in 1888–89, a lighter vehicle that could carry thirty passengers, called an "omnibus à impériale". The horse-drawn tramway gradually replaced the horse-drawn omnibus. In 1906, the first motorized omnibuses began to run on Paris streets. The last horse-drawn omnibus run took place on January 11, 1913 between Saint-Sulpice and La Villette. The horse-drawn tramway, running on a track flush with the street, had been introduced in New York in 1832. A French engineer living in New York, Loubat, brought the idea to Paris and opened the first tramway line in Paris, between the Place de la Concorde and the Barrière de Passy in November 1853. He extended the line, known as the "Chemin de fer américain" ("American rail line"), all the way across Paris from Boulogne to Vincennes in 1856. But then it was purchased by the CGO, the main omnibus line, and remained simply a curiosity. Only in 1873 did the tramway begin to gain importance, when the CGO lost its monopoly on city transport and two new companies, Tramways Nord and Tramways Sud, one financed by Belgian banks and the other by British banks, began operating from the center of Paris to the suburbs. The CGO responded by opening two new lines, one from the Louvre to Vincennes, the other following the line of fortifications around the city. By 1878, forty different lines were operating, half by the CGO. The companies tried a brief experiment with steam-powered tramways in 1876, but abandoned them in 1878. The electric-powered tramway, in service in Berlin since 1881, did not arrive in Paris until 1898, with a line from Saint-Denis to the Madeleine. When the 1900 Universal Exposition was announced in 1898 in anticipation of millions of visitors coming to Paris, most of the public transport in Paris was still horse-drawn; forty-eight lines of omnibuses and thirty-four tramway lines still used horses, while there were just thirty-six lines of electric tramways.