Alfa Romeo Giulietta Quadrifoglio Verde is used as Superbike World Championship safety car (except in the United States rounds, where because of Fiat marketing, the Dodge Challenger SRT and some Ram Trucks are used since the Giulietta brand is not sold in the United States, but the Ram and SRT brands are.).[44] A fleet of Giuliettas was used also in Eco Targa Florio organisation.[45]
The Giulietta was used as a hero car in the 2013 film Fast & Furious 6. To promote the film, Alfa Romeo published a series of photos featuring Giuliettas that were destroyed during the film's production.[46] In addition, six Giuliettas were offered with a dashboard plaque signed by cast members of the film, as well as the option to attend a stunt day with a stunt coordinator.[47]
The Handy Motorsports BTCC Giulietta
A NGTC-spec Giulietta entered the 2018 British Touring Car Championship by Handy Motorsport, achieving a race win.[48]
The Romeo Ferraris TCR Giulietta QV
In 2015, the Italian tuning garage Romeo Ferraris started to work, without the marques help, in the Alfa Romeo Giulietta to race in TCR International Series, appearing under the banner of Mulsanne Racing, with Michela Cerruti for the first two races of the 2016 season. They returned in the 5th round in Salzburgring with second car for Petř Fulín and a new colour scheme, staying in the championship until the end of the year with two cars. For 2016 season, the engine was tuned for 330 PS.[49]
In 2017, Davit Kajaia and Dusan Borković joined forces with Romeo Ferraris and raced the full TCR-season as GE-Force, taking three victories in Georgia, Bahrain and Salzburgring.
In 2018, mostly because WTCC and TCR Internacional became one, the team Mulsanne Racing entered the World Touring Car Cup (WTCR) with two Alfa Romeo Giulietta QV for the two Alfa Romeo legends Gianni Morbidelli, which raced until Vila Real being replaced by Kevin Ceccon (who scored a race win in Suzuka), and Fabrizio Giovanardi, who was replaced in the Suzuka round by Luigi "Gigi" Ferrara (2nd overall in TCR Italy 2018). For 2018 season, the car produced over 350 PS.[50]
For the 2019 season, the car received a major aerodynamic upgrade being renamed as "Alfa Romeo Giulietta Veloce". Team Mulsanne maintained Ceccon and hired Ma Qing Hua (ex-Formula E and WTCC driver). Alongside the World Cup cars, Romeo Ferraris will have about 8–10 Giuliettas racing in TCR Italy, UK, US, Australia and China.
In 2020 the Team Mulsanne car driven by Jean-Karl Vernay entered into the World Touring Car Cup finished 3rd in the Championship overall and won the WTCR Trophy as the highest car without factory support.
In Jan 2022 it won the TCR section of the Michelin Pilot Challenge race in Daytona USA.