Matthew Tvrdon has been remanded in custody after appearing at Cardiff Magistrates' Court charged with the murder of Karina Menzies and 13 counts of attempted murder during series of hit and runs in Cardiff on Friday.
The 31-year-old looked relaxed as he was released from his handcuffs and brought into the courtroom.
Unshaven and wearing a black jumper, he was asked to confirm that he was of no fixed address.
"Unfortunately, at the moment I was between moving out," he told the court in a calm voice.
Tvrdon spoke with a soft Cardiff accent as he confirmed his date of birth as November 13 1980.
Catrin Evans, prosecuting, said Tvrdon is charged with murder, 13 counts of attempted murder, four counts of actual bodily harm and one of dangerous driving.
"They should be sent to the Crown Court along with the dangerous driving, which was the first incident that occurred."
She said he would appear at Newport Crown Court at 10am tomorrow via video-link.
She argued against granting him bail and said there had been "concerns" about his mental health.
She said that since his arrest he had been to the Caswell Clinic in Bridgend for psychological assessment.
He will appear at Newport Crown Court on Tuesday.