Group B's top two teams go head-to-head to solidify their position at the summit of the table.
Here are all the highlights from their epic clash in Round 2!
BMW Sim Racing Team: Kevin Siggy, Felix Quirmbach & Michael Romanidis
Williams Esports: Kuba Brzezinski, Martin Stefanko & Nikodem Wisniewski
Spa-Francorchamps was the first circuit chosen for this tie and we began with four laps of the relay race. Kuba Brzezinski of Williams started on pole, but Kevin Siggy got a lightning getaway and took the lead into La Source.
Brzezinski dived down the inside into Les Combes, which forced Siggy over the run-off. Siggy kept the lead, but the stewards would be wanting a word with him about that move.
Sensibly, Siggy let Brzezinski through into Pouhon and Siggy was also the first to pit and change drivers at the end of Lap 1. Michael Romanidis was up next for BMW and had time to make up. BMW played their joker with Romanidis and Williams pitted for Martin Stefanko to take over driving duties.
Williams still led, but by only just over a second, it would all be down to the final lap. Niko Wisniewski had the Williams in the last lap, but a mistake into Les Combes put Felix Quirmbach right on his gearbox. The Pole held firm though, and Williams drew first blood in this contest.
BMW fight back
BMW locked out the front row for the team race with Siggy and Romanidis starting P1 and P2. Williams got off the line extremely well though, with Brzezinski and Stefanko moving up to second and third, respectively.
Wisniewski then got a monumental slipstream and flew into P3, but Stefanko fell to fifth.
On Lap 2, Romanidis passed Wisniewski for third into La Source, but the Polish driver got back past again on the run up to Les Combes. Lap 3 saw controversy, as four cars were battling up the Kemmel straight. It ended with Quirmbach spinning Wisniewski out, but he didn't yield the position.
Siggy was clear at the front and Wisniewski was cut adrift at the back. This decided the race in BMW's favour, as they drew level 1-1 in the tie.
Kevin Siggy got off to the perfect start in the relay race in his BMW, as he held first into Turn 1. Kuba Brzezinski was all over the back of the Beemer though, but wasn't able to find a place to pass. Siggy pitted at the end of the first lap, as Brzezinski stayed out and played Williams' joker.
Michael Romanidis took over the wheel for BMW and his pace was incredible. When Martin Stefanko re-emerged from the pits, he was well behind the Greek driver.
Felix Quirmbach's final lap was a breeze, as BMW won comfortably ahead of Williams on-track. No investigation was required for the stops, which meant that BMW took the lead 2-1 in the tie.
BMW hold firm
BMW locked out the front row for the Silverstone team race and maintained their advantage through Abbey. Siggy led, but Brzezinski excellently got past Romanidis into The Loop thanks to an incredible out-braking manoeuvre.
Stefanko was attempting to follow his teammate through in Luffield, but Romanidis held firm. At the back, Quirmbach and Nikodem Wisnieski were having a ding-dong battle with the former staying ahead through Lap 2.
The order stablised and BMW had a clear advantage in the points. Despite the best efforts of Brzezinski and Stefanko, they couldn't overtake and BMW took a huge 3-1 win over Williams!
This victory meant that BMW climbed to the summit of Group B with six points to their name. Williams dropped to P2, but only a point behind BMW at the top.
Up next for Williams is a difficult tie against the new boys, McLaren Shadow in Round 3. BMW also face what could be a hard game, as they face JAESA Suzuki in Round 3.