A second, freeware expansion, Grand Theft Auto Mission Pack #2: London 1961, was released for personal computers in July 1999, to coincide with the release of the Grand Theft Auto games on the internet. It is much shorter in length, and features the same map and characters as London 1969, but takes place eight years prior.

https://en.wikipedia.org/wiki/Grand_Theft_Auto:_London_1969