Auto Insurance Costs Soar by 20% in US, Biggest Gain Since 1976

There’s no relief in sight for US car owners who’ve faced soaring costs of maintaining a vehicle in the past two years.

Prices of motor-vehicle insurance rose 20.3% in December from a year earlier, the biggest jump since 1976, according to the Bureau of Labor Statistics. That was the 16th straight month of annual gains exceeding 10%.