A white woman has been caught on camera launching a ferocious racial slur-filled rant at a black couple while driving on a California freeway - and has since been fired from her job following the viral video.

Marshuante Farris and her boyfriend Shamiek Sheppard say the white driver nearly crashed into them on Monday by driving in front of their vehicle then slamming on her breaks.

Eventually the two cars were side by side where she yelled her vicious slurs out the window calling them the n-word.

Following the publication of the video, Twitter users identified the woman as a financial analyst at Morgan Stanley, where she has been allegedly fired from following her racist rant.

Marshuante Farris and boyfriend Shamiek Sheppard were driving to Oakland when a white woman violently swerved into their lane and launched a racist rant at them, pictured above

Road rage: Farris shared the racist rant on Twitter where it went viral with 143,000 views

The driver flipped the middle finger and called the couple the n-word in her angry rampage

The couple switched lanes several times to avoid the woman, who pursued them nonetheless

'She cut me off kind of aggressively and she's slamming on her breaks, you know that can cause an accident. I was just like wow, what are you doing? This is crazy. I switched lanes to get away from her and she tried to swerve the lane and cut me off again,' Sheppard, who was behind the wheel said to KRON4.

'She just started screaming at me out of the side of her window. Started screaming racial slurs and stuff like that. I'm just looking at her like "Wow this is crazy. Are you really doing this on the freeway right now?"' he added.

Sheppard's girlfriend Farris posted the video on Twitter where it went viral with 143,000 views and where followers tracked down the white driver.

'You b**** a** c*** n*****,' the white woman said as she drove by while flipping the middle finger.

Tweeting the video, Farris wrote: 'a Caucasian woman driving a black Audi followed my boyfriend and I from Richmond to Emeryville harassing us calling us n****** and c****.'

'It actually made me upset. If anyone has seen the video, I was kind of shocked that she went along and said that,' Farris said on the shocking incident.

Marshuante Farris (left) and boyfriend Shamiek Sheppard (right) filmed the rant and posted it on Twitter, where Twitter users identified the white woman behind the wheel

Twitter users complained to her alleged employer Morgan Stanley, where she works as a financial analyst, where they learned she was fired following the viral video

Twitter users later identified the woman behind the wheel as the Morgan Stanley employee, but her identity is yet to be confirmed.

Her employer told KRON: 'The behavior reflected in the video is completely inconsistent with our values and the individual involved is no longer employed by the firm.'

Speaking on the firing Farris said she wasn't fussed about the woman's job, she is more concerned about the blatant display of racism.

'You know, I gain nothing from her losing her job. I just wanted to post the video, hoping that it would go viral so we could make an example that this is not okay to treat people like that... she could have killed us,' Farris said.

Farris and Sheppard have filed an official report with the California Highway Patrol and the incident is under investigation.