Italian series After karting for several years, Bortolotti began his
formula racing career in 2005 by competing in the Italian
Formula Renault Winter Series and Formula Gloria. He competed in the Winter Series for a further two years, with a best finish of fourth in 2006. He also drove in the Italian
Formula Junior 1600 championship for this year, in addition to the Formula Azzurra championship. In the latter series, he finished as runner-up in the drivers' championship, behind winner Giuseppe Termine. In 2007, Bortolotti moved up to
Italian Formula Three, finishing fourth in the championship at his first attempt. He remained in the series for 2008, driving for the Lucidi Motors team, and won the championship with nine wins and six
pole positions from the sixteen races.
FIA Formula Two Championship Bortolotti obtained backing from
Red Bull following his championship win; the company opted to place him in the relaunched
FIA Formula Two Championship in
2009. He drove car number 14 in the series, and finished fourth. During the break between the final two rounds of the season, Bortolotti returned to Formula Three to compete for
Carlin Motorsport in the
Formula 3 Euro Series season finale at
Hockenheim, finishing on the podium in the second race.
GP3 Series Bortolotti's next move was to the newly created
GP3 Series. He drove in the
2010 season for
Addax Team alongside teammates
Felipe Guimarães and
Pablo Sánchez López and managed some good results, finishing 11th and getting a podium in his final race.
Return to FIA Formula Two Championship Bortolotti decided to return to FIA Formula Two Championship for
2011. His season began well as he took the lead in the championship after the first round. He lost it to
Christopher Zanella, later regaining the lead at the third round. He dominated the fourth round of the season at the
Nürburgring, taking pole position, victory and the fastest lap in both races. He led the rest of the season and eventually won the championship by 100 points over Zanella.
Formula One As a reward for their performances in the 2008 Italian F3 championship, Bortolotti,
Edoardo Piscopo and Salvatore Cicatelli were all given a test of the
Ferrari team's
F2008 chassis at the
Fiorano Circuit in November 2008. Bortolotti impressed by setting a time of 59.111 seconds, quicker than the previous fastest lap set by the F2008 at the circuit by any driver. In , among several other drivers, Bortolotti was linked to a drive with
Ferrari as a replacement for injured
Felipe Massa, after poor performances by
Luca Badoer. In , Bortolotti was selected by
Williams to appear in their car at the 2011 young drivers test in
Abu Dhabi.
GT Racing After his single-seater career, Bortolotti transitioned to GT racing and became a Lamborghini factory driver in 2015. He achieved notable success in GT3 competition, winning races in major endurance and sprint series, including the Blancpain GT Series and the Rolex 24 at Daytona. Bortolotti has stated that adapting to GT racing required a change in driving approach, particularly in tyre management and race strategy. His experience in GT racing later contributed to his success in touring car competition, culminating in winning the 2024 Deutsche Tourenwagen Masters (DTM) championship, the first drivers’ title for Lamborghini in the series. In 2017, Bortolotti won the Endurance Cup of the Blancpain GT Series with
GRT Grasser Racing Team and won the overall driver championship with his teammate Christian Engelhart. In 2020, Bortolotti moved from Lamborghini to Audi. Now, he is racing R8 LMS GT3 EVO in the GT World Challenge Europe Series (formerly Blancpain GT Series) Endurance Cup and ADAC GT Masters with WRT (Belgian Club W Racing Team ). In the GT World Challenge Europe Series, he shared the car with Kelvin van der Linde and Rolf Ineichen in Car No. 31, and car No. 30 with Rolf Ineichen in the ADAC GT Masters, respectively. 2023 saw Bortolotti join
Andrea Caldarelli and
Jordan Pepper in
Iron Lynx's Pro class effort in the GT World Challenge Europe Endurance Cup.
Deutsche Tourenwagen Masters In September 2021, Bortolotti made his debut in the
Deutsche Tourenwagen Masters as a guest driver for T3 Motorsport as the German team fielded a third Lamborghini Huracán GT3 Evo car in the sixth round of the
2021 DTM season at
Assen. There, he finished second in the first race on Saturday and seventh in the second race on Sunday. In February 2022, Bortolotti earned a full-time seat for the
2022 DTM season with
GRT Grasser Racing Team as the Austrian team joined the series by fielding four Lamborghini Huracán GT3 Evo cars with factory-backing from the Italian manufacturer. in 2025 In the
first round of the 2022 DTM season at
Portimão, Bortolotti finished third in both races. He qualified on pole position for the first race of the weekend and led 19 laps, but his car suffered a sudden loss of power after a safety-car period and he fell to sixth position with ten laps to go, before recovering to fourth and eventually overtaking the Mercedes of
Maro Engel on the final lap for third, with Mercedes drivers
Lucas Auer and
Luca Stolz finishing in front of him. In the first race of the
third round at
Imola, Bortolotti scored his third podium finish of the season, recovering to third after starting from 16th due to a ten-place grid penalty for using a wrong set of tyres. After experiencing his first retirement of the season in the first race of the fourth round at the
Norisring, he finished second in the second race of the weekend and moved to the top of the drivers' standings with half the season completed. ==Racing record==