What year is a k registered car?

A k registered car is a vehicle registered in the United Kingdom between September 1, 1999, and August 31, 2000. The letter "k" is the 11th letter of the alphabet, and is used to denote the 11th year of a 12-year cycle of registration letters. The cycle began with the letter "a" in 1983, and the 11th year of the cycle is k. Since the 12th year of the cycle the system became more complicated and includes numbers.