1995 Buick Riviera Supercharged Coupe 2-door 3.8l on 2040-cars

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Opel Insignia OPC getting facelift. Will the Buick Regal GS see it, too?

We've seen spy shots of the base Opel Insignia wearing facelifted front and rear ends, and now it appears that the more potent OPC version will be benefitting from a nip/tuck, as well.
The front bumper has been redesigned, incorporating new air intakes - toned-down versions of the model's signature fangs - as well as a new grille. Out back, there will be minimal changes to the overall fascia, most likely stuff like slightly redesigned taillamps, and inside, these spy shots show a larger navigation/infotainment screen sitting atop the center console.
This is all well and good for the Insignia, but we're wondering how these changes will impact North America's Buick Regal GS. No, it may not share the same powertrain punch as the Euro-spec OPC, but visually, the cars are nearly identical. When questioned about possible changes for the GS, a Buick spokesperson told us that the automaker "can't comment" on any changes at this point. Even so, we wouldn't be surprised if some small changes come our way in the next year or so.

Buick mulling more powerful Encore; diesel too

Looking to set itself apart in the mid-luxury segment, Buick is looking to introduce a diesel engine somewhere in its US lineup. And according to Edmunds, the two best chances of a diesel Buick rest with the Encore and Verano.
In both our First Drive and Review of the 2013 Encore, our chief complaint about the compact crossover was the the lack of power from the 138-horsepower turbo engine. Edmunds says that the recently introduced 1.6-liter four-cylinder engine (with both gas and diesel variants) from the Encore's overseas cousin, the Opel Mokka, could make its way into the Encore delivering the much-needed boost in power.
Then there's the Verano. As a close relative to the Chevy Cruze, which just added a diesel engine for 2014, the article speculates that a Verano Diesel might actually be the more "probably candidate" if and when Buick decides to add a diesel model to its portfolio. Either way, offering such an engine in one of its products could be a great way for Buick to differentiate itself from Cadillac and possibly even attract buyers from Volkswagen, Audi and Mercedes-Benz looking for a luxurious, fuel-efficient vehicle.

GM warning 800,000 owners that their cars may need oil changes more frequently than they say

The days of changing your engine oil every 3,000 miles are long gone thanks to most cars having automatic oil monitoring systems, but about 800,000 General Motors vehicles apparently have incorrect monitoring software that is leading to premature engine component wear. According to Autoweek, certain 2010-2012 Buick LaCrosse, Regal, Chevrolet Equinox and GMC Terrain models equipped with 2.4-liter four-cylinder engines could be going too long in between oil changes resulting in a higher-than-normal number of warranty claims for the engine's balance chain. The balance chain links the balance shaft to the crankshaft, and a worn one can produce higher noise levels.
As a fix, GM dealers will be reprogramming the software for the monitors in an effort to reduce the interval between oil changes, which varies based on driving habits and conditions. Through February 2015, the software update will be done at no cost to vehicle owners, but since this is not a recall, after that point, it will be up to the discretion of dealers as to whether or not they will charge for the service. What isn't immediately clear is whether GM plans on giving assistance to out-of-warranty customers who are experiencing engine issues from the worn chain.