General Motors delayed its usual sales figure reporting after computer troubles precluded it from releasing the data at 9:30 a.m. as normal, but announced this afternoon a positive sales gain of 4.1 percent compared to March 2013, with a total of 256,047 vehicles sold last month.
Winner: Buick Encore, 5279 sales, up 75.8 percent
The Buick Encore isn't one of GM's biggest sellers, but the small crossover boasted the second-biggest annual sales improvement compared to last March. It was the second best-selling Buick model, trailing the Enclave by just 607 units. Elsewhere in the Buick brand, both the LaCrosse and Verano sedans saw sales tumble, while the Enclave and Regal both posted sales gains.
Winner: Chevrolet Sonic, 10,060 sales, up 45.6 percent
The Chevrolet Sonic also boasted an impressive year-over-year gain, in a month when Chevrolet passenger cars (vehicles other than crossovers and trucks) saw sales climb a combined 10 percent. The smaller Chevrolet Spark, which sells half as many cars overall, closely followed the Sonic's gain with a 44.6-percent increase compared to March 2013.
Winner: Chevrolet Cruze, 26,521 sales, up 14.0 percent
The perennially successful Chevrolet Cruze compact sedan once again was Chevrolet's second best-selling vehicle. So far this year, Cruze sales are on a tear, up 17.0 percent versus the first three months of 2013.
Winner: Chevrolet Silverado, 42,247 sales, up 6.8 percent
After a slower start -- Silverado sales to date are off last year's pace by 7.6 percent -- GM's top-selling product picked up its pace last month. Combined with its GMC Sierra, the Chevrolet Silverado pushed GM truck sales to 59,110 units in March. That beat the Ram pickup's 42,532 sales but still wasn't enough to unseat the truck sales king, the Ford F-Series, which racked up an incredible 70,940 sales in March.
Winner: Cadillac SRX, 5399 sales, up 23.6 percent
The SRX was the model with the biggest sales gain in the Cadillac portfolio last month, and it remains the brand's best-selling model -- even though it is one of the oldest. The Cadillac CTS also saw its sales rise, by 4.6 percent, but every other Cadillac saw sales slip last month. Overall, Cadillac sales fell 6.3 percent in March and 7.3 percent so far this year.
Loser: GMC Acadia, 8339 sales, down 16.7 percent
The GMC Acadia three-row crossover suffered a big sales slip last month, making it only the third most popular model in the GMC stable (the Sierra pickup was first and the Terrain crossover was second). Not that it was the only three-row GM product with that problem: the mechanically related Chevrolet Traverse posted a 13.9-percent sales drop. The Buick Enclave, however, saw sales increase.