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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.

Submit your questions for Autoblog Podcast #334 LIVE!

We're set to record Autoblog Podcast #334 tonight, and you can drop us your questions and comments via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
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BMW 5 Series future: 3-cyl engines and 600-hp M5

What if we told you the next BMW M5 would crest 600 horsepower? You probably wouldn't be too surprised, considering the steady increase in output that's accompanied each preceding generation. Now, what if we told you that the next BMW 5 Series would be available with a three-cylinder engine? Yeah, that'd be a surprise. But it may be a reality, according to a new report from Car. In its roundup of information on the next-gen BMW 5, code-named G30, the Brit mag predicts the new sedan will arrive in the summer of next year riding on an all-new platform that trims nearly 180 pounds of body fat through the use of high-strength steel, aluminum and carbon fiber. That platform, called the CLAR, which is short for Cluster Architecutre will give birth to not only a new 6 Series, but (for some reason) a 5 Series Gran Turismo and a Touring model, which won't likely be sold in the US. It will also underpin the 7 Series, eventually. Under hood, the lighter 5er will be paired with a new 1.5-liter, three-cylinder turbodiesel for the entry level 518d. This is the same three-pot oil-burner found in the 2 Series Active Tourer and Mini Cooper D. Of course, considering how little of BMW's actual engine range is sold in the US, we very much doubt the 518d will make it across the pond. More likely candidates for the US market include a range of a 2.0-liter, four-cylinders, such as the 272-horsepower 528i, and potentially a four-cylinder diesel. Naturally, there will be six-cylinder mills, found on the 530i, 530d, 540i and M550d. At the very top of the range, of course, will be a 600-hp M5. There will even be a range of hybrids and plug-in hybrids that are sure to further annihilate the formerly logical BMW nomenclature. Car expects the new 5er to arrive next summer, which we'd wager would lead to a debut at either the 2016 Geneva Motor Show or perhaps next year's Auto China, in Beijing. Featured Gallery BMW 5 Series Next Generation Spy Shots News Source: CarImage Credit: CarPix Rumormill BMW Diesel Vehicles Hybrid Luxury Sedan