The Safer Barrier Project is currently still active, though, it had almost shut down but now looks to be here to stay!  Their website does require registration to be able to download their files.  SBP is a great location from some very excellent track updates/creations as well as many other great updates to download.  Due to their download limitations per day & the difficulty to become a member for some of their webpage I’ve decided to host their free tracks here as well.  This download list does NOT include their premium tracks the paid members have access to.

http://www.saferbarrierproject.com

Atlanta Motor Speedway 2007 (Night)
Atlanta Motor Speedway 2007 (Day)
Auto Club Speedway (California) 2008/09
Bristol Motor Speedway 2007 (Night)
Bristol Motor Speedway 2007 (Day)
Chicagoland Speedway 2008 (Night)
Chicagoland Speedway 2008 (Day)
Darlington Raceway 2008 (Night)
Darlington Raceway 2008 (Day)
Daytona Int’l Speedway (Brian Ring Edition) (Night)
Daytona Int’l Speedway (Brian Ring Edition) (Day)
Dover Int’l Speedway 2008
Homestead-Miami Speedway (2014 update) (Night)
Homestead-Miami Speedway (2014 update) (Day)
Kansas Speedway 2008
Las Vegas Motor Speedway 2007 (Night)
Las Vegas Motor Speedway 2007 (Day)
Lowes (Charlotte) Motor Speedway 2006 (Night)
Lowes (Charlotte) Motor Speedway 2008 (All Star Race – Night)
Martinsville Speedway 2006
Martinsville Speedway (Night) (Modified)
Martinsville Speedway 2008
Michigan Int’l Speedway
Michigan Int’l Speedway V.2
Phoenix Int’l Raceway
Richmond Int’l Raceway 2007 (Day)
Richmond Int’l Raceway 2007 (Night)
Richmond Int’l Raceway 2011 (Night)
Richmond Int’l Raceway 2011 (Day)
Richmond Int’l Raceway (Nextel)
Talladega Superspeeway 2006 (Brian Ring Edition)