For anybody who does not know you can download The Launch Bonus Car Pack which is free… can be installed now, and includes the following eight cars:
2012 Cadillac Escalade ESV
1968 Abarth 595 esseesse
1956 Ford F-100
2003 Ford Focus RS
1997 Land Rover Defender 90
1987 Buick Regal GNX
1993 Renault Clio Williams
2015 Ford Mustang GT
Enjoy 
http://news.xbox.com/2014/09/games-forza-horizon-2-free-cars
http://forums.forza.net/turn10_postst21959_Forza-Horizon-2—DLC-and-Editions-List.aspx
Is the Launch Day Pack considered the October FH2 DLC or are they separate if so when are we getting details on the October DLC?
Chances are it will be in october 
It’s says there will be an actual October dlc and it’s not the launch cars look on the dlc thread.
Agree. The October DLC will should be different vehicles