Aug. 28/13-The Cessna 310Q (registration C-GZUV) aeroplane was landing at South Shore Regional Airport (CYAU). The aircraft landed long and fast and departed the end of runway 25 by about 20 feet. The nose gear collapsed in soft gravel and both propellers struck the ground with engines running. The two occupants exited without injury. The aircraft was substantially damaged and the airport was NOTAMed closed until removal of the aircraft.