The Mirror reports that Twitter user @CookedKitfo saw the Twilight twosome in a car together.
She tweeted: "Just saw Robert Pattinson driving next to me in Sherman Oaks. Yea it was that Kristen girl. Lol no. Honest to God. They were driving by my work in a residential area."
The apparent sighting fuels rumours that R-Pattz and Kristen have rekindled their romance after briefly splitting following the 22-year old's fling with the Snow White And The Huntsman filmmaker.
Earlier this week, US Weekly claimed that the couple reconciled after dramatic make-up talks in Los Angeles, with a source telling the publication: "They're working it out. He's still in love with her."