More information can be found here:
http://www.mta.info/capitaldashboard/10_14/agencies/l/l60101ma_all_data.htm
Which should replace only around half of the M3s when the time comes for them to bite the dust.
From the George Conrad Collection at NYCSubway.org ,two photos of the Malbone St. wreck.
http://www.nycsubway.org/perl/show?114323
http://www.nycsubway.org/perl/show?114322