High Quality Content by WIKIPEDIA articles! The Patria Pasi (earlier known as the Sisu Pasi) is a Finnish made six-wheeled armoured personnel carrier (APC) originally designed for Finnish Defence Forces. The first version was produced in 1983 and serial production began in 1984. The basic design was based on easy usage, simple basic structure and low cost maintenance. The basic appearance and configuration is similar to most wheeled APCs. The XA-180 and XA-185 versions are fully amphibious while the XA-203 is not.