28-year Tatiana Bastos thrust a six-inch blade in the groin of 31-year-old Ricardo Morais after her effort to seduce him failed.
Lincoln Crown Court was told that Bastos pulled the knife out of her handbag as Morais steered the car in the direction of his factory where he worked in Newark, Notts, hoping that the security staff would help him in getting rid of her.
"She said she was going to kill me and then kill herself. I didn't believe her and kept driving with my eyes on the road ahead," the Sun quoted him as saying.
"The next thing I felt Tatiana leaning into me and felt the blade in my groin. She did not say anything. I felt I was going to die," he stated.
Morais, who ended his four-year-old relationship with Bastos, said that the attacked took place just two months after he had found a new girlfriend.
In her defence, Bastos said that she had attacked him with a knife when he tried to rape her.
Prosecutor Caroline Bradley said that the she had questioned her Morais on his new girlfriend
"It was almost a situation of if she could not have him, then nobody else could," Bradley said.
Judge Michael Heath sentenced Bastos to 32 months imprisonment after she admitted to unlawful wounding, possessing an offensive weapon and perverting the course of justice.
"This was a wicked thing to do. When you stabbed the knife into his groin, it penetrated three levels of clothing, his jeans, his thermals and his boxer shorts," the judge told her.
"He and you are very fortunate that no more serious injury was caused because it is no exaggeration to say you could have quite easily killed him.
"You then attempted to orchestrate a false allegation of sexual assault against him to deflect the blame away from yourself. You lied and lied for days until the truth came out," he added.