RSR Intelligence · Issue 018

Issue 018 · Thursday 17 September 2026

Suzuka gives Porsche the advantage: Indianapolis will test the response

Porsche left the Suzuka 1000km with a much stronger position in the Intercontinental GT Challenge manufacturers’ championship. Its advantage over Mercedes-AMG grew from eight points to 38, with Indianapolis remaining. Porsche now has 132 points, AMG 94 and BMW 74. Suzuka supplied Porsche with 40 points against AMG’s ten, changing the scale of the task facing its closest rival.

AO by Absolute Racing’s #8 Porsche 911 GT3 R, shared by Alessio Picariello, Laurin Heinrich and Julien Andlauer, won ahead of Miedecke Motorsport by Team MPC’s #64 Ford Mustang GT3. Absolute Racing’s #7 Porsche, driven by Ayhancan Güven, Alessandro Ghiretti and Dorian Boccolacci, completed the podium. Those positions are confirmed in the signed final classification.

The two podium Porsches operated under Absolute’s umbrella. First and third establish a strong two-car conversion by that operation at Suzuka. They cannot, by themselves, establish equivalent performance across independent Porsche teams. Porsche’s wider customer presence remains relevant, but entry volume does not measure how many independent teams can deliver at the front.

The race also ran under a revised Balance of Performance, the system used to balance the competing GT3 models. AMG’s base BoP weight rose by 20kg and BMW’s by 10kg; Porsche’s remained unchanged. Driver-pairing ballast was applied separately. That change limits direct comparisons between qualifying and race performance, although the weight figures alone cannot explain the finishing order.

Mercedes-AMG Team Craft-Bamboo Racing’s #77 recovered from 28th on the grid to fifth. Luca Stolz, Maxime Martin and Kakunoshin Ohta had lost all qualifying times after the car was found 2.5kg underweight. A later wheel-handling infringement brought a five-second pit-stop penalty. The recovery demonstrates useful competitive capacity beyond Winward Racing, alongside avoidable losses through compliance and pit execution. It doesn’t establish which finishing position a clean weekend would have produced.

The other Pro Mercedes-AMG had a different outcome and cause. In its 13 September post-weekend release, Mercedes-AMG says 75 Express’s #75 retired after Kenny Habul moved onto the dirty part of the track at 130R and hit the barrier. That was an incident-caused retirement. It provides no evidence of a reliability failure or stretched factory support.

Sportscar365 also reported worsening vibration and late-race grip difficulties in the #77, including unsuccessful attempts to address the vibration during the race. Those accounts describe symptoms, without establishing a mechanical diagnosis. Stolz’s assessment in Mercedes-AMG’s release was that the eventual pace was insufficient for more than fifth. The recovery therefore supports competitiveness without proving race-winning pace.

The drivers’ championship shows the opportunity cost more precisely. Maro Engel scored no Suzuka points while Stolz and Martin each gained ten, reducing their deficits from 17 and 18 points to seven and eight. They had the opportunity to overtake him, but Engel still leads by 68 points, ahead of Stolz on 61 and Martin with 60. Heinrich’s victory takes him to 46. The absence surrendered a scoring opportunity; it did not cost Engel the IGTC lead. AMG previously confirmed he would miss both Suzuka and Indianapolis because of DTM commitments.

Suzuka strengthens the evidence of AMG capacity outside Winward, but did not deliver clean results from both Pro teams. It leaves intact RSR’s wider assessment that Winward remains its clearest example of turning front-running opportunities into sustained championship value. Craft-Bamboo’s compliance and pit errors, Habul’s accident and Engel’s separate DTM incident do not demonstrate a common resource problem. No attributable evidence yet connects the losses to compromised engineers, management, equipment or factory-support personnel.

Indianapolis is taking shape

Heinrich now has a confirmed Indianapolis seat. Wright Motorsports has announced him alongside Dave Musial Jr. and Ryan Yardley in its #31 Porsche. Kévin Estre joins Therese Lahlouh and Thomas Merrill in the sister #242. The announcement connects Suzuka’s winning driver directly to Porsche’s developing American entry.

Kellymoss has also confirmed three Pro-Am Porsches, adding Kay van Berlo, Lars Kern and Aaron Jeansonne to its regular pairings. On the AMG side, Sportscar365 reports Indy Dontje joining Brayton Williams and Daniel Morad at TR3 Racing. Dontje’s place in that Pro-Am crew does not establish AMG-directed placement, factory support, or a manufacturer points nomination.

SRO has now published a 29-car provisional field. Mercedes-AMG has six entries, including two Pro cars: #34 JMF Motorsports and #80 Mercedes-AMG Team Lone Star Racing. Porsche has ten entries, but only #8 McCann Racing is listed Pro. This establishes two provisional AMG Pro routes through separate teams; it does not yet establish how Stolz and Martin will be allocated. The full driver combinations remain pending. Announced seats do not settle scoring eligibility, and exact title scenarios still require the controlling 2026 scoring, eligibility and tie-break provisions.

The Indianapolis 8 Hour takes place on 10 October. It is the IGTC and GT World Challenge America finale, a separate event from IMSA’s Battle on the Bricks at the same circuit.

Suzuka established Porsche’s enlarged manufacturers’ advantage and Absolute’s ability to deliver a major result. Indianapolis is the next test of whether AMG can turn its capacity beyond Winward into clean championship results. Success would weaken the allocation-risk thesis. Further losses would still need their causes established before they could support a resource-allocation verdict.

Silverstone puts AMG ahead in ELMS

Team Qatar by Iron Lynx delivered Mercedes-AMG’s first European Le Mans Series victory at the 4 Hours of Silverstone. Abdulla Ali Al-Khelaifi, Ralf Aron and Julian Hanses won LMGT3 in the #62, finishing 2.938 seconds ahead of TF Sport’s #33 Corvette after a race disrupted by rain.

The championship consequence is immediate. Team Qatar by Iron Lynx leads the LMGT3 teams’ standings on 73 points, three ahead of TF Sport, before the Portimão finale on 10 October.

Proton Competition’s #77 Porsche took third after Harry King passed for the final podium place on the last lap. Its sister #75 finished sixth. The two Proton entries now sit third and fourth in the teams’ championship, on 62 and 61 points respectively.

For AMG, Silverstone provides a clear competitive achievement in its LMGT3 programme. For Porsche, the final round begins with two Proton cars pursuing the leading Mercedes and Corvette. The useful comparison with Suzuka is how sharply one result can change a championship position.

Preining takes a 23-point lead towards Hockenheim

Thomas Preining finished second behind Ben Dörr’s McLaren in Sunday’s DTM Sachsenring race, recording his sixth consecutive podium. The Manthey Porsche driver now has 197 points, ahead of Engel on 174 and Schubert Motorsport’s Marco Wittmann on 173.

Engel’s 15-second penalty for contact with Kelvin van der Linde removed his Sunday race points. Wittmann finished sixth, leaving Porsche, Mercedes-AMG and BMW represented in the leading three positions with two races remaining.

Preining’s repeated podium finishes have built a substantial advantage. Engel and Wittmann arrive at the final meeting separated by just one point, with little room to absorb another costly result.

The next measurement: Zandvoort

GT World Challenge Europe’s Sprint Cup returns at Zandvoort, 18–20 September. Team WRT’s Charles Weerts and Kelvin van der Linde lead Lionspeed GP’s Ricardo Feller and Bastian Buus by 2.5 points. WRT must also serve a five-place grid penalty following van der Linde’s contact with Ben Green at Magny-Cours. Daniel Juncadella, racing for Mercedes-AMG Team Verstappen Racing, is third and reunites with Chris Lulham.

For RSR, the useful test is whether WRT can protect its narrow BMW lead, Lionspeed can turn its Porsche challenge into the championship lead, and AMG can keep its competing crews within reach. Two short races leave much less time to repair an imperfect qualifying session or pit stop.

Also on RSR: what the Nürburgring delay settles

ADAC Nordrhein has postponed its proposed 24h Nürburgring Series until 2028. That removes the planned new championship from teams’ 2027 decisions. The Qualifiers’ final points status and the longer-term organising structure still require resolution.

Our latest explainer examines what teams can now plan around, and which assumptions remain premature. Read the Nürburgring explainer