X2000 is a high-speed tilting train developed by ASEA in 1989. The train is driven by a power car at one end by push/pull and could operate up to 200km/h. The train had also tested overseas for evaluation, one unit exported to China for cross-boundary service between Guangzhou and Hong Kong in 1998-2007, but now have returned to Sweden. X2000 is also known as X2 in Sweden, mainly in use on high demand high-speed services.
Acela (US), TGV (FR), Velaro (Ger, although there are British, Chinese and Russian versions as well)
There are other systems, such as the Japanese Shinkansen.