+ Bavarian brand remains firmly in control, Porsche all but secure in second place
+ Close fight for third between Toyota, Mercedes-AMG and Aston Martin
+ Final leg consists of nine scheduled events, concluding in Macau
+ Global GT4 standings
BMW continues to dominate this season’s GT4 Manufacturer Ranking, while Porsche appears to be on course for runner-up spot after putting significant distance between itself and the chasing pack. With nine rounds scheduled to run, the key battle is for the final place on the podium between Toyota, Mercedes-AMG and Aston Martin.
But that doesn’t mean other brands aren’t enjoying success. A prime example is Ford, which secured its first clean sweep of the season when Monochrome GT4 Australia visited Sandown Raceway on 26/27 July.
George Miedecke and Rylan Gray (Miedecke Motorsport) took Race 1 honours, bagging their third win of the campaign, while Jason Gomersall and Aaron Seton (Gomersall Motorsport) triumphed in Race 2. Australia has been an especially happy hunting ground for the Mustang, with four of its six global wins coming Down Under.
The FFSA French GT Championship was at Magny-Cours on 2/3 August for one of its biggest meetings of the season, sharing the bill with GT World Challenge Europe powered by AWS. Both races were won by non-competing manufacturers, though the event still had implications for the global standings.
Porsche was the chief beneficiary thanks to JSB Compétition's runner-up finish in Race 1, while Aston Martin also scored well at the former French Grand Prix venue courtesy of Mirage Racing. While its chances of catching BMW are slim, this nevertheless helped the Weissach marque to edge clear of the chasing pack.
The following weekend (9/10 August) saw ADAC GT4 Germany back in action at the Nürburgring. Significantly, this event brought an end to Mercedes-AMG's domestic dominance after the Affalterbach brand swept the opening two rounds. Porsche was victorious in Race 1 with the W&S Motorsport pairing of Hendrik Still and Philipp Gogollok, while the FK Performance line-up of Gabriele Piana and Berkay Besler broke through for BMW in Race 2.
Pirelli GT4 America travelled to Road America on 16/17 August, though it was restricted to a single outing after Race 1 was cancelled due to the threat of lightning. Fortunately the forecast for Sunday was very different, with blue skies over the Wisconsin track allowing for an uninterrupted contest.
Driving solo for JMF Motorsports, Mike David Ortmann triumphed in his Aston Martin to end a four-race winning run for Random Vandals. The BMW squad finished second, with the ACI Porsche completing the Road America podium.
After a quiet few weeks – at least by GT4 standards – there were two series in action on the weekend of 23/24 August. Brands Hatch played host to the penultimate round of the British GT campaign, which produced a fifth win of the season for Optimum Motorsport's McLaren. But, for the first time in 2025, it was the car shared by Luca Hopkinson and Harry George that triumphed for the Wakefield squad.
The ADAC GT4 Germany title fight caught fire when the series ran at the Sachsenring. Razoon led a Porsche podium sweep in Race 1 as Denny Berndt and Max Rosam beat the twin W&S cars to the top step. As was the case at the Nürburgring, the second outing was won by the FK-run BMW of Piana and Besler, who closed the gap at the top of the standings to just 10 points with two rounds remaining.
The German theme continued on 30/31 August with the GT4 European Series powered by RAFA Racing Club travelling to the Nürburgring. This was the first GT4 Europe event at which Team Speedcar did not secure at least one victory with its all-conquering Audi, though the French outfit did just enough to clinch the Silver title with a round to spare.
Instead, two squads bagged their first wins of the season: Josh Rattican and McKenzie Cresswell (Elite Motorsport) put McLaren on top in Race 1, while youngsters Jan Duran and Hadrien David (Matmut Évolution) triumphed for Toyota in Race 2. The latter marked the Supra's 14th win of the season, but its first in a European series.
Toyota has been considerably more successful in the Japan Cup, which also resumed on 30/31 August. The penultimate event took place at Okayama, where TGR Indonesia duo Haridarma Manoppo and Seita Nonaka maintained their 100 percent record for the season, beating the Zenko-run Porsche in both races.
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One week later, on 6/7 September, Pirelli GT4 America was at Barber Motorsports Park for a unique three-race weekend. The first took place on Friday as a make-up for the cancelled Road America contest and saw Kevin Boehm and Kenton Koch give the Random Vandals BMW a sixth win of the season, beating RAFA Racing’s Toyota and the JMF Motorsports Aston Martin.
ACI’s Porsche won the second contest – which was, strictly speaking, Race 1 of the Barber round – thanks to Riley Dickinson and Curt Swearingin. The Pro-Am duo beat the Silvers, triumphing ahead of the Randon Vandals M4 and JMF's Aston. RAFA Racing gave Toyota its first Pirelli GT4 America win of the season in Race 2 thanks to Gresham Wagner and Tyler Gonzalez. They came home ahead of P1 Groupe's McLaren while, for the third race in a row, JMF was third with its Aston Martin.
On the same weekend, The Bend Motorsport Park played host to the penultimate Monochrome GT4 Australia round of the season, which formed part of the venue’s GT Festival. Race 1 went to McLaren thanks to the Method Motorsport duo of Tom Hayman and Max Geoghegan, who have now contributed three wins aboard their Artura.
They might well have made it four in Race 2 were it not for a remarkable drive from Ryder Quinn, who shared victory with Steve Jakic after charging through the field in the Thunder Buddies BMW. The car started outside the top 20 but, in a drive that was emblematic of BMW’s global performance, blazed a trail to the front.
The most recent run of races concluded with ADAC GT4 at the Red Bull Ring and Japan Cup at Suzuka. The latter became the first series to wrap up its 2025 campaign and produced something of a surprise result in Race 1 as, for the first time this year, TGR Indonesia failed to secure the GT4 class victory. The all-conquering Supra was beaten by Yoshimoto Makino and Takeshi Suehiro, who triumphed aboard their Zenko Porsche, before normal service was resumed in Race 2 with a season-closing win for Manoppo and Nonaka.
Porsche enjoyed another fine weekend in its home series – which was competing outside Germany for the only time this year – thanks to a brace of one-two finishes for W&S Motorsport at the Red Bull Ring. Still and Gogollok led the way in the opening contest, while Lachlan Robinson and Oskar Lind Kristensen did likewise in Race 2. Thomas Gore and Alon Gabbay took runner-up spot in both, while Enrico Förderer and Jay Mo Härtling (SR Motorsport by Schnitzelalm) were back on the podium in their Mercedes-AMG with a P3 finish in the second outing.
This standout weekend saw Porsche trim some 70 points from BMW’s advantage, though the gap remains significant. Indeed, with a 311-point cushion at the top of the standings, the Bavarian marque can fairly be called the champion-in-waiting. Porsche is secure in second position, while Toyota, Mercedes-AMG and Aston Martin are closely matched in the battle for third. McLaren, Audi and Ford complete the table.
The Japan-ADAC doubleheader is followed by successive off-weekends, marking the first pause since early June and the first two-week break since the season began in March. There are nine scheduled events left on the calendar, beginning on 4/5 October when FFSA GT (Circuit Paul Ricard), ADAC GT4 (Hockenheim) and British GT (Donington Park) all bring the curtain down on their respective seasons.
The campaign is set to conclude with SRO GT Cup tackling the legendary streets of Macau on 15/16 November. Should current form continue, BMW will have successfully defended its global crown long before engines are fired up for the finale.