 Complete the following phrase:  The 2019 Blancpain GT Sports Club was the fifth season of the SRO Motorsports Groups Blancpain GT Sports Club, an auto racing series for grand tourer cars. The Blancpain GT Sports Club is a championship for Bronze level drivers only, with two additional sub-classes based on age, Titanium and Iron, in order to separate the potential of using higher-level drivers who are often in amateur classes based on their age. The Titanium categorisation for drivers between the age of 50 and 59. The Iron categorisation for drivers over the age of 60 meaning all drivers who would be FIA Platinum or Gold but are 60 or older. The races were contested with GT3-spec, GTE-spec, GT2-spec and Trophy cars. The season began on 13 April at Monza and ended on 29 September at 