Cristiana Oprea competed 2 full seasons (2017 - 2018) in DACIA Cup,[8] part of the Romanian National Rally Championship.

Her rookie season was 2017, when she completed 7 events driving a Dacia Sandero 0.9 TCe with Ioana Stan as a codriver.

In 2018 she finished on the 5th place overall in DACIA Cup, marking the best result of a woman driver since 2007, when Alina Bunica competed.

Oprea first stepped on a podium at the beginning of 2019 season at Argeș Rally, when together with codriver Diana Hațegan took second place overall[9] in DACIA Cup.

In July 2019 she and codriver Diana Hațegan became the first ladies crew to ever represent Romania in the FIA ERC European Rally Championship, at Rally di Roma Capitale, where they finished P8 in the highly competitive ERC3 class and gained maximum points in the ERC Ladies Trophy standings.