Max Verstappen vs Valentino Rossi: How Their GT3 Cars Compare

The finale of the GT World Challenge Europe Endurance Cup at Portimao is set to deliver an extraordinary crossover showdown as Formula 1 driver Max Verstappen and motorcycle racing legend Valentino Rossi square off in the Pro category. Stepping into the 61-car field to cover for regulars Jules Gounon and Daniel Juncadella—who are on duty at the World Endurance Championship round in Barcelona—Verstappen joins an elite grid in high-profile sports car machinery, setting up a thrilling duel between two of motorsport’s most celebrated figures.

Technical Showdown: Mercedes-AMG V8 vs. BMW Turbocharged Straight-Six

While competing in the same class, the machinery chosen by both drivers represents starkly contrasting philosophies of GT3 engineering. Mercedes-AMG Team Verstappen Racing, managed on track by 2 Seas Motorsport, fields the Mercedes-AMG GT3 EVO after transitioning to the German manufacturer for 2026 following previous campaigns with Aston Martin. Verstappen shares driving duties with Chris Lulham and Ben Barnicoat.

At the heart of the Mercedes-AMG is the M159, a high-displacement, naturally aspirated 6.3-litre V8 engine producing roughly 550 horsepower prior to regulatory calibration. Configured with a front-mid-engine orientation and rear-wheel drive, the car incorporates a six-speed sequential gearbox and weighs approximately 1,285 kg, balanced alongside a set of 390 mm front disc brakes.

Rossi’s entry, the No. 46 BMW M4 GT3 EVO fielded by Team WRT, opts for forced induction. Alongside BMW factory drivers Max Hesse and Neil Verhagen, the Italian icon drives a machine motivated by the P58 3.0-litre (2,993cc) twin-turbo inline-six engine derived directly from BMW’s road-car family, rated at up to 590hp before balance adjustments. Measuring 5,020 mm with its aero package over a 2,917 mm wheelbase, Rossi’s challenger also routes power through a six-speed Xtrac sequential transmission and utilizes 390 mm front discs with six-piston calipers paired with 380 mm discs at the rear.

Introduced in 2025, the EVO specification of the BMW M4 GT3 focuses heavily on operational drivability, component durability, and cost efficiency. The base platform boasts a decorated history of more than 70 competitive victories, highlighted by overall honors at the 2022 DTM championship and the 2023 Spa 24 Hours endurance race.

Leveling the Playing Field: Balance of Performance

Despite the fundamental contrasts in engine architecture, turbocharging, and acoustic profiles—pitting a deep, naturally aspirated V8 rumble against a higher-frequency turbocharged inline-six whine—SRO’s Balance of Performance (BoP) formulas equalize the field. By adjusting parameters such as curb weight, engine restrictors, and turbo boost profiles, BoP regulations ensure that neither the raw output advantage of the BMW nor the displacement of the Mercedes provides an inherent performance benefit over a full stint.

Driver Form: Track Records in GT3 Machinery

Though best known for his dominance in single-seaters, Verstappen brings formidable GT3 experience to the cockpit. On September 27, 2025, Verstappen claimed victory in his GT3 debut during the Nürburgring NLS9 event, partnering with Chris Lulham in a Ferrari 296 GT3 to lead from the opening lap and secure a win by over 20 seconds. More recently, Verstappen led the 2026 Nürburgring 24 Hours in the No. 3 Mercedes-AMG before being sidelined by a driveshaft failure with three hours remaining, clearing the way for the sister No. 80 car to secure Mercedes’ first triumph at the event since 2016.

Rossi, a nine-time motorcycle world champion, represents seasoned GT3 pedigree, having raced full-time with Team WRT since 2022. After an inaugural season in Audi R8 hardware, Rossi transitioned to BMW machinery in 2023. His portfolio includes a remarkable streak of three consecutive Misano Sprint victories on home soil across 2023, 2024, and 2025 behind the wheel of the M4, along with multiple podium finishes in the LMGT3 ranks of the FIA World Endurance Championship across the 2024 and 2025 campaigns.

Acknowledging the scale of the challenge in Portugal, Rossi noted the threat posed by his Dutch competitor: Max Verstappen is going to be a huge problem because the bloke is just so incredibly fast, he said.

Why This Matters

The convergence of active Formula 1 front-runners and premier champions from other disciplines underlines the continuing rise of the GT3 platform as global motorsport’s definitive customer-racing and endurance standard. With the GT World Challenge Europe Endurance Cup title battles culminating in Portimao, having top-tier crossover drivers like Max Verstappen and Valentino Rossi competing in identical performance windows via BoP brings unmatched visibility to sports car racing while serving as a real-world test for professional factory teams and customer racing operations alike.

Frequently Asked Questions

Why is Max Verstappen racing in GT World Challenge Europe at Portimao?
Verstappen is filling in at Mercedes-AMG Team Verstappen Racing because regular drivers Jules Gounon and Daniel Juncadella are competing concurrently in the World Endurance Championship event held in Barcelona.

How do technical organizers balance a turbo engine against a naturally aspirated V8?
Series officials utilize Balance of Performance (BoP) regulations, adjusting vehicle ballast, air restrictors, ride height, and electronic boost pressures to ensure that cars with drastically different specifications—such as BMW’s 3.0-litre twin-turbo six and Mercedes-AMG’s 6.3-litre V8—produce equal lap-time potential over a race distance.

Who are the co-drivers supporting Max Verstappen and Valentino Rossi this weekend?
Verstappen shares the Mercedes-AMG GT3 EVO with Chris Lulham and Ben Barnicoat under the operation of 2 Seas Motorsport. Rossi competes in the Team WRT No. 46 BMW M4 GT3 EVO alongside BMW factory drivers Max Hesse and Neil Verhagen.