1991 Buick Century Custom Coupe 2-door 2.5l on 2040-cars

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GM claims it's first to sell million 30+ mpg vehicles

As we continue to put together all the data for the year-end edition of By The Numbers, General Motors has announced that it sold more than a million vehicles in the US last year that achieved at least 30 miles per gallon on the highway. More impressively, GM managed this feat using multiple strategies including small vehicle size, turbocharged engines and hybrid or plug-in technologies across four brands (Buick, Cadillac, Chevrolet and GMC) accounting for 13 separate models. This number will grow even more in 2013 thanks to cars like the all-electric Spark, the diesel Cruze, the range-extended Cadillac ELR and the Buick Encore compact CUV.
GM's small car sales were up 39 percent last year helping to attain this million-sales mark for 30-mpg models, and almost 40 percent of all GM sales consisted of cars with fuel-efficient I4 engines. In regards to more advanced means of improving fuel economy, GM says that it plans on having 500,000 vehicles with "some form of electrification" on the road by 2017.
Scroll down for the full list of GM's million 30+ mpg cars as well as an informative press release.

GM laying off 500 workers to slow Chevy Sonic production

Due to slow sales of the Chevrolet Sonic and Buick Verano, General Motors is cutting a shift at the Orion Township plant that builds the pair. The move lays off about 500 workers, but most of them are expected to get offers to transfer to other factories, Automotive News reports. The move came just a day after GM announced adding 1,200 employees to the Detroit-Hamtramck plant. GM has been trying all year at the Orion Township factory to align production of the Sonic and Verano with their demand. The automaker first attempted idling the plant several times and eventually resorted to laying off about 100 workers. It also reduced the production rate there. With the huge rise in popularity of crossovers, demand for the plant's small cars is on the downturn. According to Automotive News, there's currently a 116-day supply of Sonics and 100 days of Veranos to sell. Delivers tell a similar tale because the Chevy is off 35.2 percent from January to September, and the Buick does little better with a 27.2 percent drop from the same period last year. While the situation at Orion Township might look rough now, big things are on the horizon. Soon, the new Chevy Bolt electric vehicle will be built there when it hits the market around 2017. Plus, the plant will also get a $245-million upgrade and 300 new jobs for another, unannounced vehicle.

Watch this phantom Buick drive itself down the highway in a snow storm

Years ago, General Motors used Buick cars to test out the idea of a "smart highway" concept. More recently, GM has been talking up its award-winning Super Cruise semi-autonomous technology that will roll out with Cadillac and make its way to Buick. The LeSabre in the video above has nothing to do with any of that.
On Interstate 15 in Utah, a man driving this LeSabre got into an accident that rearranged the front end and set the horn on permanent blare. At the time of writing this, no one is sure what happened next, but the man ended up sitting in the snow in the highway median while his car carried on down the highway without him. Passing traffic stayed well to the right.
The 51-second video below provides a different take on our autonomous future. A local newscast on KUTV covered the story the evening of the incident, but the Utah Highway Patrol didn't have any update on the fate of the LeSabre. We'll take that to mean that Buick's take on Christine could still be out on the prowl... so watch out!