2017: First step into GT racing In 2017, Marciello ventured into the sportscar racing scene, driving a
Mercedes-AMG GT3 for AKKA ASP in the
Blancpain GT Series Endurance Cup and
Blancpain GT Series Sprint Cup. The Italian impressed in his debut year, scoring two podiums in the Sprint and Endurance cups respectively. His highlight however came at the
24 Hours of Spa, where, having qualified on pole alongside teammates
Edoardo Mortara and
Michael Meadows, Marciello used up the maximum allowed driving time of 14 hours to help his team to finish third.
2018: Mercedes factory driver Ahead of the 2018 season,
Mercedes-AMG added Marciello to their rank of Performance drivers, thus making him a fully-fledged factory driver. The season saw him returning to both the
Endurance Cup and
Sprint Cup series where, once again with AKKA ASP, he paired up with Meadows in the latter and drove alongside
Tristan Vautier and
Daniel Juncadella in the former. Marciello performed to a high level, taking second-placed finishes in the Endurance rounds at
Silverstone and - after initially being awarded victory when a suspected technical non-compliance for the winning team caused them to be provisionally disqualified -
Barcelona, which led him to a runner-up spot in the Endurance Cup. Having inherited the title at first, an appeal by the disqualified team stripped the accolade from Marciello, with the disqualification being converted into a fine. Meanwhile, wins at
Budapest and the season finale at the
Nürburgring alongside a slew of further podiums gave Marciello and Meadows the Sprint Cup title. That year, Marciello also partook in all four rounds of the
Intercontinental GT Challenge with Mercedes. He scored podiums at
Bathurst and
Spa, as well as taking a win at the
Suzuka 10 Hours, the latter earning him the provisional championship lead, though a seventh place at
Laguna Seca, a race in which Marciello damaged his car and received a drive-through penalty after a mistimed move on the
WRT Audi of
Sheldon van der Linde, set him back to third in the standings.
2019: Maiden Macau crown Continuing into a third season of the
Endurance and
Sprint series at AKKA ASP, Marciello would be partnered by
Vincent Abril in both championships, with the pair being joined by
Michael Meadows for the endurance rounds. In the Sprint Cup, Marciello was unable to defend his title, even if a win at
Zandvoort and a pair of victories at the season finale in Hungary earned him and Abril third in the championship, one the pair battled for until the final race of the season. As well as this, the final victory at the
Hungaroring guaranteed AKKA ASP the teams' title. Their campaign in the Endurance Cup proved less fortunate, as retirements in two races saw the Italian end up 25th overall. Marciello took part in the
FIA GT World Cup, held at the prestigious
Guia Circuit in Macau, at the end of the year with Team GruppeM. Having taken pole position for the event the previous year, the Italian repeated said feat in 2019, before proceeding to control Saturday's qualification race and winning the main race, therefore becoming the GT World Cup winner for the first time.
2020: ADAC GT Masters debut Despite a truncated year due to the outbreak of the
COVID-19 pandemic, Mercedes would expand Marciello's full-time racing duties, with him not only driving for AKKA in the rebranded
GT World Challenge Europe Endurance and
Sprint cups, but also taking part in the
ADAC GT Masters alongside
Philip Ellis. That campaign proved to be largely anonymous, say for the final race at
Oschersleben, where Marciello and Ellis took victory from pole position. His campaign in the Endurance Cup would see more success than the previous year: partnering
Felipe Fraga and silver-ranked
Timur Boguslavskiy, Marciello and his team ended up fifth in the standings, having taken a pair of podiums at the start of the year before encountering brake issues at the
24 Hours of Spa which ended their championship challenge. In the Sprint Cup, Marciello helped Boguslavskiy towards wins at
Misano and
Barcelona, though he would finish third in the drivers' standings - one place behind the Russian, who himself ended up mere four points behind the title-winning duo of
Dries Vanthoor and
Charles Weerts - as he missed the round at
Zandvoort due to his commitments at the
24 Hours of Nürburgring.
2021: Further victories in GTM and GTWC during the
2021 ADAC GT Masters season. Marciello remained in the
ADAC GT Masters for 2021, this time driving at
Mann-Filter Team Landgraf-HTP WWR together with
Maximilian Buhk. The season began promisingly, as the duo converted pole to victory at the season opener in
Oschersleben in a commanding performance. The team would score two further podiums during the first eight races of the season, which was enough to close the gap to just three points compared to the leading Land-Motorsport outfit of
Ricardo Feller and
Christopher Mies. However, a retirement at the
Sachsenring owing to a crash caused by
Albert Costa and a 30-second penalty which led to a finish outside of the points in
Hockenheim put the title out of reach for Marciello and Buhk, who ended the season fourth overall. Marciello also drove for the AKKA ASP Team in the
SRO competitions, being joined by new Mercedes factory driver
Jules Gounon on a full-time basis in the
Endurance Cup and once again partnering
Timur Boguslavskiy in the
Sprint Cup. In the former series, Marciello and Gounon were able to mount a title charge, taking second places at
Monza, a race which Marciello led during the opening stint, and at the
Nürburgring, where the team ran in second for the majority of the contest. Additionally, Marciello scored a second successive pole position for the
24 Hours of Spa, though the team would retire due to damper failure. The points they lost in Belgium cost the outfit during the final round in
Barcelona, where, despite taking victory alongside
Felipe Fraga, Marciello and Gounon would miss out on the championship by four points. In the Sprint Cup, Marciello and Boguslavskiy scored four podiums but failed to win a race, leading to a third-placed finish in the drivers' standings. Near the end of the year, Marciello confirmed that he would be switching to a Swiss racing licence from 2022 onwards, citing a lack of support from the governing body of Italian motorsport as the reason for his "overdue" switch.
2022: GTM and Endurance Cup titles ,
Daniel Juncadella and Raffaele Marciello that won the
2022 24 Hours of Spa Team Landgraf and Marciello were reunited for the
2022 ADAC GT Masters season, with a variety of teammates accompanying the Italian across the season. A double podium to start the year off was swiftly followed by Marciello's first pole at the
Red Bull Ring, one which he converted to third place in the race. Following that round, teammate
Jonathan Aberdein was replaced by
Lorenzo Ferrari, with personal issues between Marciello and the South African and a lack of pace from the latter being the speculated reasons for said decision. A disappointing event in
Zandvoort was the result, though Marciello would bounce back at the
Nürburgring, winning the opening race and finishing second on Sunday alongside fellow factory driver
Maro Engel and taking the championship lead in the process. The Swiss driver was joined by
Daniel Juncadella, another factory driver of the German brand, for the remaining three rounds, where he took three further podiums as well as two pole positions, which enabled him to clinch the title one race early at the
Hockenheimring. In addition, another double campaign at AKKodis ASP in the
Endurance and
Sprint cups was in store for Marciello. Once again, he was joined by Boguslavskiy in the Sprint Cup, where wins at
Brands Hatch,
Magny-Cours and
Zandvoort, along with a heap of fastest laps and pole positions on Marciello's part, enabled the pair to fight for the title, though they would lose out for a third successive year to the WRT duo of Vanthoor and Weerts. Despite this, Marciello managed to clinch the overall
GT World Challenge Europe title at the final Sprint Cup round. This was compounded by a notable season in the Endurance Cup: having earned top honours at the
24 Hours of Spa, the trio of Marciello,
Jules Gounon and Daniel Juncadella ended up winning the championship at the season finale in
Barcelona, beating Ferrari's
Antonio Fuoco by two points.
2023: Final triumphs with Mercedes At the start of 2023, Marciello drove for GetSpeed Performance in the
Asian Le Mans Series. Having scored a pair of podiums during the first event in
Dubai, he,
Fabian Schiller, and Florian Scholze ended up third in the GT championship. He also made his prototype debut during the
24 Hours of Daytona, where he drove an
Oreca 07 for
High Class Racing. Marciello's main campaigns would, once more, lie in the European
SRO competitions, as he remained with Boguslavskiy in the
Sprint Cup and joined him and Gounon for a title defence in the
Endurance Cup. The Endurance Cup season opener at
Monza ended with retirement, with Boguslavskiy causing race-ending damage with a misjudged defensive move, though the team bounced back with a victory at
Le Castellet, where Marciello charged through the field during the final hours to take victory. A second place at the
24 Hours of Spa was followed by a win from pole position at the
Nürburgring. The gap the team had amassed meant that a fifth-placed finish at
Barcelona was enough to clinch back-to-back titles for Marciello and Gounon. Marciello was able to stamp his mark on the Sprint Cup campaign as well, which started with a victory apiece at
Brands Hatch and
Misano, with dominant opening stints from Marciello being the catalysts for success. The duo retired during the first race at
Hockenheim, but would bounce back to win on Sunday in spite of gear-shifting issues which manifested during Boguslavskiy's stint. Another pole position truncated by an imposing first stint from Marciello earned AKKodis victory in
Valencia, though this would not be enough to take home the Sprint Cup title, with a collision caused by Audi's
Lorenzo Patrese ending the team's final race at
Zandvoort, therefore crowning the Tresor Orange1 outfit as champions. Parallel to his GTWC commitments, Marciello partnered John Ferguson in the
British GT Championship. With a win at
Snetterton, Marciello and Ferguson helped
Ram Racing to fourth place in the teams' standings. In November 2023, Marciello would drive his final race as a
Mercedes-AMG factory driver, competing at the
FIA GT World Cup in Macau with Team Landgraf. A dominant weekend followed, as Marciello took pole, won the qualifying race on Saturday and clinched world cup honours with a faultless drive on Sunday. With his departure imminent, Marciello presented his Macau victory as a "last gift" to the Mercedes brand he had been a part of for the previous seven years.
2024: Switch to BMW, Hypercar step-up The week after his Macau triumph, Marciello announced that he would be joining
BMW as a factory driver. In January 2024, he was announced to be making his debut in the
FIA World Endurance Championship in the top-flight
Hypercar class, driving for factory-backed
Team WRT in a
BMW M Hybrid V8 alongside
Dries Vanthoor and
Marco Wittmann. He also joined bronze-ranked John Ferguson at RAM Racing in the
British GT Championship and drove together with
Maxime Martin and
Valentino Rossi in the
GTWCE Endurance Cup. Marciello made his first appearance at the wheel of a
BMW M4 GT3 at the
2024 Bathurst 12 Hours alongside the aforementioned pair, finishing fifth. Marciello's hypercar season yielded mostly muted results. Having failed to score points in the first half of the year, the No. 15 BMW crew finished ninth at
São Paulo and eighth in
Austin. A strong drive in
Fuji then earned the team second place — despite Marciello colliding with
Earl Bamber during the third hour —, BMW's first top-class podium in the WEC. Marciello and his teammates capped off the season with fifth in
Bahrain, majorly contributing to BMW finishing fifth in the manufacturers' standings.'''''' In British GT, Marciello's season highlight proved a GT3 lap record at
Spa-Francorchamps. He left the series after completing just five races and finished 14th in the drivers' standings. In the Endurance Cup meanwhile, Marciello, Martin, and Rossi finished three of the five races in the top five but failed to score at
Spa and the Nürburgring, leaving them ninth overall. Marciello performed strongly in the
FIA GT World Cup at Macau, qualifying on pole and winning the qualifying race. During the main race however, a furious battle for the lead between Marciello and
Antonio Fuoco concluded with both drivers overshooting the Lisboa turn with three laps to go; Marciello finished 18th, one lap down. Both drivers blamed each other for the incident, with Marciello suggesting that Fuoco had moved under braking, whereas Fuoco claimed that Marciello had missed his braking point and therefore hit the rear of Fuoco's Ferrari.
2025: Nürburgring 24 Hour honours Marciello continued driving for BMW and WRT in the
2025 FIA World Endurance Championship, this time being joined by Vanthoor and
Kevin Magnussen. He also partnered
Augusto Farfus and
Jesse Krohn at
ROWE Racing in the
GTWCE Endurance Cup. After finishing fourth overall in a one-off at the
24 Hours of Daytona, Marciello took second at the
Bathurst 12 Hours in a WRT one-two finish. This strong form continued into the first WEC round in
Qatar, where Marciello and his teammates finished fourth. They then placed sixth in
Imola and tenth in
Spa, where Marciello received a drive-through penalty for speeding in the pit lane. A hybrid system cooling issue caused the No. 15 to finish multiple laps down at
Le Mans. This set the tone for the team's fortunes, as the No. 15 failed to score points in the remaining four races. This included an accident for Marciello on his outlap at
Fuji, caused by him swerving to avoid the suddenly slowing No. 99
Proton Porsche of
Nico Pino. BMW still finished fifth in the manufracturers' standings, though Marciello and his teammates ended up behind the sister No. 20 in the drivers' championship. The GT3 campaign saw Marciello achieve a number of standout results. In the Endurance Cup, a commanding victory at the Nürburgring and third place at Barcelona propelled Marciello and ROWE Racing to fourth in the standings. Marciello also made a one-off start in the
Sprint Cup at
Misano, winning race 1 with a late overtake on
Vincent Abril. The year's highlight came at the
24 Hours of Nürburgring, where Marciello and teammates Farfus, Krohn, and
Kelvin van der Linde profited from a penalty for the leading
Manthey Porsche to claim victory. This result, coupled with his Bathurst podium, fourth at
Spa, and a victory at the
Suzuka 1000 km, catapulted Marciello into title contention for the
2025 Intercontinental GT Challenge ahead of the final round in
Indianapolis. There, Marciello finished third in a weather-impacted finish, causing him to end up second behind Kelvin van der Linde in the IGTC. At
Macau, Marciello capped off the year by finishing second to his old rival Fuoco. == Racing record ==