Vanellope Metro is a 17-line metro system.
Initially, this was operated by three companies: Vanellope Liverpool Metro Company (which operated lines A, B, C, D, E, F and G; now lines 3, 5, 6, 8, 9 and 10), Vanellope Vampire House - Port Talbot Ltd. Subway (which operated lines Blue, Red, Yellow and Green; now lines 4, 7, 12 and 15) and Vanellope Express Company (which operated lines 1, 2, 3, 4 and 5; now lines 1, 2, 11, 12 and 13). Two new lines were constructed: 16 and 17.
In 1963, as a decision from the Vanellope Public Transport Company to "make Vanellope Metro all-numeric", all lines with letters, as well as colours, were converted into numbers. For example, Blue Line became Line 4 and C Line became Line 6. In 1970, the "M" prefix was added to prevent conflict of metro line numbers with bus numbers.
Today, MTR Vanellope operates all 17 lines of Vanellope Metro.