After a one-season absence, the seven-kilometre Formula 1 track at Spa-Francorchamps is once again hosting the ADAC GT Masters, and with the usual Ardennes weather. The Super Sports Car League went into the 60-minute free practice session on Friday morning under grey skies and with light drizzle falling. So for the first time this year, the teams got the chance to fit the rain tyres supplied by Pirelli. With the track drying towards the end of the session, the lap times started to tumble, and in the last minute alone, the lead changed hands three times. Ultimately, the Top Four positions were shared out among two BMW Z4 GT3s and two Audi R8 LMS ultras. They were followed by a couple of Porsche 911 GT3 Rs.

The fastest lap on Friday morning was set by the BMW Z4 GT3 of Jens Klingmann and Dominik Baumann (BMW Sports Trophy Team Schubert), which already has one victory to its credit at this venue - the ADAC GT Masters debut at Spa in 2013. With the surface rapidly drying out towards the end, Florian Stoll and Marc Basseng in an Audi R8 LMS ultra were 1.9 seconds adrift. P3 went to the BMW Sports Trophy Team Schubert pairing of Claudia Hürtgen and Uwe Alzen, with P4 going to Daniel Dobitsch and Edward Sandström in a kfzteile24 MS Racing Audi.

Rene Bourdeaux and Robert Renauer making their first start of the 2015 season together in a Herberth Motorsport Porsche 911 GT3 R clocked the fifth-fastest time ahead of a second Porsche entered by GW IT Racing Team Schütz Motorsport and driven by the pairing of Klaus Bachler and newcomer Martin Ragginger. Ragginger from Austria is one of three former winners of the 24 Hours of Spa who are competing in the Super Sports Car League in Belgium this weekend, the others being Bernd Schneider and Uwe Alzen.

Current championship leaders Luca Ludwig and Sebastian Asch (Team Zakspeed) drove the fastest of the Mercedes-Benz SLS AMG GT3s, finishing FP1 in seventh place ahead of Clemens Schmid and Fabian Hamprecht in the faster of the two Bentley Continental GT3s (Bentley Team HTP).

The HP Racing Mercedes-Benz SLS AMG GT3 of Hari Proczyk and Bernd Schneider and the C.Abt Racing Audi R8 LMS ultra driven by Andreas Weishaupt and Christer Jöns took ninth and tenth respectively.