I'm not surprised, a delayed and censored game that has little-to-none advertising and a franchise that has historically not sold well in Europe.
http://www.vgchartz.com/gamedb/?name=twisted+metal&publisher=&platform=&genre=&minSales=0&results=200
According to these numbers, the biggest game in the series Twisted Metal 2, 2.44 million overall sales, 2.12m of those were from North America and only 250k from Europe.
That means that only 10.2% of sales came from Europe for TM2.








