Uber is driving ahead with its plan to become a travel “superapp”.

The San Francisco-headquartered firm announced Wednesday that it is adding trains, buses, planes and car rentals to its U.K. app this year. The move is part of a pilot that could be expanded to other countries at a later date if it goes well.

While Uber won’t provide these travel services itself, it will allow users to book them through its app following software integrations with platforms that sell tickets.