JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - Detroit Slyline
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - K-PAX Racing #6 Volvo S60R coming down Pit Lane
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - GTs waiting in line
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - GT and GTS fields waiting to get on track
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - Busy Pit Lane at the start of Practice
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - Audi - Merc - Audi waiting to go on track
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - Cadillac Racing #8 CTS-V.R
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - K-PAX Racing #6 Volvo S60R
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - R8 LMSs following each other closely
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - Pair of GMG Racing R8 LMSs into Turn 1
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - Cadillac Racing #3 CTS-V.R
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - Black Swan Racing #54 SLS GT3
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - #72 Porsche Cayman S
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - GT3 Cup, RTR TSX and Hawk Performance GTR into Turn 1
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - GMG R8 LMS about to cross Start/Finish Line
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - Audi R8 LMS and GT3 Cup Going into Turn 1
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - Taggart Autosport #61 Lotus Exige
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - GMG Racing R8's in Pit Lane
JRB_EVO: Belle Isle - 2013 Pirelli World Challenge Saturday Practice - Black Swan Racing #54 SLS GT3