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BMW 4 Series spied with its future competition

BMW showed off its new 4 Series coupe in concept form at the 2013 Detroit Auto Show earlier this year, but it won't be long before we see the production model, evidenced by this modestly camouflaged prototype spotted testing. In case you forgot, the 4 Series serves as the replacement for the two-door versions of the BMW 3 Series, just as the upcoming 2 Series will effectively be the new version of the 1 Series coupe and convertible sold in our market.
This isn't our first glimpse of the 4 Series out testing, and we've even spied its droptop, Gran Coupe and too-hot M4 kin. We don't expect the final design to stray too much from the concept car seen in Detroit, albeit without the normal conceptual goodies like oversized wheels and with the overstyled front fascia toned down a bit. Our spy photographers even caught the 4 Series coupe hanging out with an Audi A5, giving us a good glimpse at how the two cars will stack up in terms of size and design.
It's still unknown exactly what engines will power the car when it comes to production, but since this thing is a derivative of the 3 Series, we expect the usual range of turbocharged four- and six-cylinder engines to be available, likely in 428i ad 435i guise (though, to be fair, the larger 640i coupe uses a 3.0-liter turbo engine, so there's even the potential for 440i nomenclature to work its way into the mix). We'll have to wait until the car officially bows later this year to know for sure.

BMW is the US auto industry's leading exporter

Which automaker do you think ships the most cars out of North America, one of the Detroit Three or perhaps one of the Japanese automakers? Nope. It turns out the BMW's Spartanburg, SC, factory is the biggest automotive exporter from the continent in the United States. According to a recent profile by Bloomberg looking at the plant's 20th anniversary, Bimmer's southern ops sends out more vehicles than all of Michigan combined.
When the Spartanburg factory opened up in 1994, its success was hardly assured, largely because of South Carolina's relatively small economy at the time. However, BMW picked the site because of its proximity to East Coast shipping that made it easier to move engines and transmission in from Germany and export vehicles back to Europe, according to Bloomberg. The Bavarians clearly made the right choice.
Today, the plant has developed into an absolute powerhouse. The factory currently assembles the X3, X4, X5 and X6 and exports about 70 percent of the vehicles built there. Things are only getting better. BMW is investing $1 billion through 2016 to boost annual production from the current 300,000 units up to 450,000 and to build a new flagship crossover called X7. The expansion also adds a further 800 jobs there to take total employment up to about 8,800. Including the latest financing, BMW has put over $7.3 billion into the factory since it opened, notes Bloomberg.

This Alpina C1 is a rare bit of BMW 3 Series history

Over its five decades in the business, German tuner-turned-automaker Alpina has established a long history of taking great BMWs and making them just a bit tastier, more luxurious, and well... faster. Of course, they haven't always been the land rockets of modern day, however that's not to say they were exactly tame. Back in the early 1980s, this was one of the cars to have—an Alpina C1 2.3. Based on the original E21 BMW 3-series, the C1 2.3 bridged the performance gap between the standard BMW 323i and Alpina's hard-charging B6 2.8. It summoned up a heady 170 horsepower and disposed of the 60 mph sprint in just seven and a half seconds. Not shabby at all. 33 years later, this '83 Alpina C1 is back up for sale , and it's still quite the head-turner. RELATED: Check Out the Hard-Charging 2016 Alpina B6 xDrive A look back at the C1's contemporary relatives show just how wide Alpina's performance gap had been. Introduced in 1977, the BMW 323i offered up 141 horsepower courtesy of BMW's famed M20 straight-six engine, a big performance improvement over the E21's previous four-cylinders. The Alpina B6 2.8 3-series on the other hand, introduced in 1978, blew its doors off thanks to the bigger 2.8-liter straight-six plucked from the BMW 528i, offering up 200 horsepower. All that, in an early 3-series. With that in mind, a middle-of-the-pack car made sense, so Alpina treated the 323i's straight-six to some of the B6 2.8's goodies, minus the former's Bosch fuel-injection system. Bilstein shocks were part of the diet too, along with oversized disc brakes, sleek alloy wheels, as well as the tell-tale Alpina front splitter, rear spoiler, and racy side-stripes. RELATED: The BMW Isetta is Coming Back, But as an Electric Vehicle! Inside, Alpina added a dose of luxury as well. One could order their C1 2.3 with the gorgeous optional Recaro seats with Alpina stripes, as well as a bespoke leather steering wheel, gear knob, and speedometer. Top speed? About 130 mph. Compared to regular E21 BMW 3-series cars, these are quite rare. How rare is a point of debate, however. Production estimates range from as few as 35 to as many as 400, depending on the source. Regardless, you certainly don't see them everyday, and if this one fits your fancy... it lives in Philadelphia, Pennsylvania. Related Video: This article originally appeared on Boldride.com. Aftermarket BMW Auctions Coupe Classics eBay alpina