Since all Mangustas newer than #1136 were detail-completed in Germany, maybe the safety latches are a Mercedes or BMW part? Such extras could have been added by POs over 50 yrs.
Heiko Ostmann's class winning race Mangusta #1052 lost a rear cover during competition, DNF-ing that event (Silverstone?) So rear cover safety latches seem worth installing. Note- Heiko still won the 2009 C.E.R World Championship in GT-1 against GT-40s, Lolas, Ferraris and others.
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