DETROIT — U.S. auto sales grew 6.3 percent in March on rising sales of SUVs and pickup trucks.

Automakers sold more than 1.6 million vehicles for the month. Truck and SUV sales rose 16.3 percent while car sales plunged 9.2 percent, according to Autodata. Nearly two-thirds of all vehicles sold were trucks or SUVs.

“All in all, it looks like consumers are starting to get used to the (economic and political) noise,” said Jeff Schuster, a senior VP at LMC Automotive, who added that the strong March won’t cause him to change his full-year sales prediction of just under 17 million, down 1.4 percent from last year.

Monthly sales reports may become a thing of the past if other automakers follow General Motors. The company announced Tuesday that after March, it would stop reporting monthly sales in favor of quarterly numbers.

Here’s how individual automakers fared in dealer showrooms last month:

- General Motors posted the biggest sales increase at 15.7 percent to 296,138 vehicles. It was led by Buick with a 28 percent increase.

- Fiat Chrysler reported almost a 13.6 percent increase to 216,063 vehicles. It was led by a 45 percent increase in sales of the all-SUV Jeep lineup.

- Ford said its sales rose 3.5 percent to 243,021. Ford brand sales were up 3.7 percent.

- Toyota sales also went up 3.5 percent to 222,782, led by Toyota brand sales, which rose 4.5 percent.

- Nissan reported a 3.7 percent sales decline to 162,535. Nissan brand sales dropped 3.6 percent.

- Honda reported a 3.8 percent increase to 142,392. It was led by Acura, which saw a 15.7 percent increase.

- Hyundai sales were off 11 percent to 61,540 as it struggled in a market shifting to SUVs.

- Volkswagen sales were up 13.5 percent to 52,992.