What a heart-pounding climax to the IMSA WeatherTech SportsCar Championship! Action Express Racing clinched a dramatic victory at Saturday's Motul Petit Le Mans, the season finale, fending off fierce competition from factory teams like Lamborghini and Aston Martin in an endurance battle where energy management became the ultimate game-changer. And this is the part most people miss – the late-race pit stops that flipped the standings and sparked debates about strategy versus raw speed. But here's where it gets controversial: Should teams be allowed to gamble on energy reserves so aggressively, potentially rewarding clever tactics over superior driving? Let's dive into the full story, breaking it down step by step so even newcomers to sports car racing can follow along.
In the premier GTP class (which stands for Grand Touring Prototype, a high-performance category featuring cutting-edge hybrid cars designed for endurance racing), Earl Bamber piloted the No. 31 Cadillac V-Series.R to a commanding 5.182-second victory over Roman De Angelis in the No. 23 Aston Martin Valkyrie. This triumph unfolded amidst a flurry of energy-related drama in the final stages. With just 13 minutes remaining, both Bamber and Mathieu Jaminet in the No. 6 Porsche 963 ducked into the pits for quick energy top-ups – a process where drivers recharge the car's hybrid battery to maintain speed and efficiency, much like topping up a smartphone to avoid it dying mid-race. Romain Grosjean, racing what could be the Lamborghini SC63's last appearance, tried to eke out every bit of power from his machine, only to pit later and promote the Valkyrie to its historic first podium in global sports car events. De Angelis, alongside co-drivers Ross Gunn and Alex Riberas, celebrated that runner-up spot, while Grosjean ended up fourth with Edouardo Mortara and Daniil Kyvat, marking the Ligier-based Lamborghini's best result yet.
Bamber, teamed with Frederik Vesti and Jack Aitken, controlled the final four hours like seasoned pros, leading the Michelin Endurance Cup round without a single caution flag in the last 3 hours and 51 minutes. That smooth sailing contrasted sharply with the chaos earlier on, where the pole-starting No. 60 Acura ARX-06 of Tom Blomqvist battled intensely with Aitken. Aitken seized the lead mid-way through the third hour with a daring pass in traffic, but a pesky right-rear puncture forced Bamber into an unplanned stop, dropping him to 12th. Jaminet capitalized on a timely pit stop before a fifth full-course caution, grabbing the lead, but a faster stop during the final yellow restored Vesti to the front, where the Cadillac stayed dominant.
This win wasn't a fluke for Action Express Racing – it secured their second straight WeatherTech Championship triumph, following their victory at last month's Battle on the Bricks in Indianapolis. Cadillac, too, made it back-to-back at Petit Le Mans after Chip Ganassi Racing's win the previous year. Meanwhile, Jaminet and Matt Campbell clinched the GTP drivers' championship with a third-place finish, aided by last-minute substitute Laurens Vanthoor, who juggled duties between Porsche Penske cars after Julien Andlauer dealt with a back issue. Porsche claimed the manufacturers' title by a hefty 42 points, with their No. 6 car outpacing fierce rivals like Acura Meyer Shank Racing.
The Acura squad had its own share of ups and downs. Blomqvist, Colin Braun, and Scott Dixon salvaged fifth place despite a mechanical hiccup in the race's second half that slowed them down. Their sister No. 93 Acura dropped a lap early due to gearshift problems requiring a new steering wheel for Nick Yelloly, but fought back to seventh, just behind the No. 10 Wayne Taylor Racing Cadillac, which lost its rear deck after a collision with another car. Louis Deletraz guided the No. 40 Wayne Taylor Racing Cadillac to eighth, while Philipp Eng's No. 24 Team RLL BMW M Hybrid V8 faded to ninth after a strong top-five run in what was BMW's final race with Bobby Rahal's team after 17 years.
Felipe Nasr's No. 7 Porsche, reportedly involved in contact with Ricky Taylor's No. 10 Cadillac on the final lap, crossed the line in tenth, costing Nasr and Nick Tandy second in the GTP drivers' standings – a spot that went to Aitken instead, who remarkably started the event sixth in the championship. The No. 25 BMW and No. 85 JDC-Miller Motorsports Porsche rounded out the 12-car GTP field, though sports car rookie Max Esterson dazzled early in the JDC-Miller Porsche, climbing as high as fourth and keeping pace with the factory Porsches.
Shifting gears to the LMP2 class (Le Mans Prototype 2, a more affordable category for endurance racing where teams build cars to a standardized design, often using prototypes like the Oreca 07 to focus on driver skill and strategy), TDS Racing overcame significant hurdles to secure class victory in Steven Thomas' farewell WeatherTech Championship race. Starting from the back of the grid, they battled through setbacks like a penalty for technical issues (including faulty rear brake lights leading to a mechanical black flag) and a collision with Felipe Fraga's No. 74 Riley car. Thomas, Mikkel Jensen, and Hunter McElrea shared the win honors.
AO Racing, led by Gunnar Jeannette, grabbed the LMP2 title with a sixth-place finish for Dane Cameron, PJ Hyett, and Jonny Edgar – just enough to earn an automatic invite for Hyett to next year's 24 Hours of Le Mans. Their race was equally turbulent: Edgar suffered a puncture after contact with Nicklas Nielsen's No. 88 AF Corse Oreca, drawing a penalty for the Ferrari Hypercar driver, but AO bounced back. United Autosports' hopes crumbled when Rasmus Lindh's No. 22 Oreca hit a suspension failure, handing the lead to TDS. AO reclaimed it briefly, but belt issues during a driver change and another setback dropped Cameron out of the top five. Still, he clinched a record fifth WeatherTech title across different classes, outpointing Thomas by 100.
The No. 43 Inter Europol Competition Oreca, which started on pole, took second, with Era Motorsport's Oreca rounding out the podium. These LMP2 battles highlight how endurance racing isn't just about speed – it's about resilience, quick fixes, and smart pit strategy, turning every incident into a learning opportunity for teams.
For the full official results from the Motul Petit Le Mans, check out this link: https://imsa.results.alkamelcloud.com/Results/252025/22Road%20Atlanta/01IMSA%20WeatherTech%20SportsCar%20Championship/202510111210Race/10Hour%2010/03ResultsRaceUnofficial.PDF
John Dagys is the founder and Editor-in-Chief of Sportscar365. Dagys spent eight years as a motorsports correspondent for FOXSports.com and SPEED Channel and has contributed to numerous other motorsports publications worldwide. Contact John (https://sportscar365.com/cdn-cgi/l/email-protection#a8cdccc1dcc7dae8dbd8c7dadcdbcbc9da9b9e9d86cbc7c5)
What are your thoughts on this season-ender? Do you think the energy management rules need a tweak to level the playing field, or is the current setup just part of the thrill? And was Aitken's championship leap really deserving, or should there be more emphasis on consistency over late-race heroics? Share your opinions in the comments – let's debate the controversies that make motorsport so addictive!
