Mostert will no longer fulfil his endurance commitments alongside FPR 's Alex Davison later in the year .
Mostert will no longer has been released from Matthew White Motorsport for the remainder of the 2013 Dunlop series .
Mostert will no longer fulfil his endurance commitments alongside FPR 's Alex Davison later in the year , and has been released from Matthew White Motorsport for the remainder of the 2013 Dunlop series .