In Buddhist context, a fiery chariot that carries the souls of sinners into hell — a classical/religious image.
経典には、悪行の報いとして火の車に乗せられると説かれている。
Scriptures teach that as punishment for evil deeds one may be placed on a fiery chariot.
An idiom meaning to be in a desperate financial situation; to be completely strapped for money.
大学生のうちはバイト代が少なくていつも火の車だ。
As a university student I have little part-time pay and I'm always strapped for cash.
会社の経営が悪化して、今は火の車の状態だと言われている。
The company's management has worsened; it's said to be in dire financial straits now.
季節の出費が重なって、家計が火の車になった。
With seasonal expenses piling up, the household finances became desperate.