Missed
Uncrewed Mars landing 2018
“Planning to send Dragon to Mars as soon as 2018. Red Dragons will inform overall Mars architecture, details…”
4+ years late
At an April 2011 press conference at the National Press Club, Musk announced the Falcon Heavy with a first launch initially scheduled for 2013. The rocket did eventually fly — its debut came on February 6, 2018, more than four years behind the original schedule — making this one delivered, but delivered late.
Missed
Cancelled
Cancelled