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BMW already considering four cylinders for next M3

The cylinder count in BMW's M3 has fluctuated over the years. The original M3 debuted in 1985 packing a 2.3-liter inline-four, but subsequent models went with sixes until the outgoing generation upped the cylinder count to eight. With its latest model, BMW has dropped back to six cylinders with a pair of turbos taking the place of the extra pistons. But the next M3 sedan and M4 coupe could go back to the model line's roots with a four-cylinder engine.
Speaking with BMW M product manager Carsten Pries at the launch of the latest M3 and M4 in Portugal, our Aussie compatriots at Motoring.com.au report that "you could see a future [M3] powered by a four-cylinder engine." Offsetting the reduction in cylinders, the lighter engine would benefit the vehicle's weight and balance, thus enhancing performance.
We wouldn't expect the next M3 and M4 to lose any power in the process, though: Output in the M3 has only risen over the generations, from 192 horsepower in the four-pot original to 282 hp in the six-cylinder E36, 338 hp in the six-cylinder E46, 414 hp in the V8 E90 and 425 ponies in the new turbocharged six-cylinder F80 model. With that latter model having just debuted, it'll likely be a good six or seven years before the next version comes along, giving BMW plenty of time to settle on an engine - however many cylinders and turbochargers it has. In the meantime, you'll have to forgive us for taking a romp down M3 memory lane in the fresh gallery of images above.

BMW M4 to debut in Detroit, lose manual transmission

BMW took the wraps off its M4 Concept at Pebble Beach last weekend, and many speculated that the highly anticipated production version of the sleek new two-door sports coupe would debut at the Los Angeles Auto Show later this year. But a well-placed source tell Autoblog that the E92 M3's successor won't arrive in Southern California this November. Instead, the German automaker will wait until the Detroit Auto Show in January for its first official reveal.
An all-new 3.0-liter inline-six with twin turbochargers is expected under the hood, and it should provide about the same horsepower as the current 4.0-liter V8 (rated at 414 horsepower), but with much more torque that arrives lower on the tachometer. The lightweight engine is said to have an impressively high redline, which is unusual for a turbocharged engine.
Unfortunately, Save the Manuals members aren't going to like this next bit of news. After four generations of three-pedal M3 models, our source says the upcoming F82 M4 will arrive with a dual-clutch transmission (DCT) as standard equipment - with no manual option - just like the latest iteration of the track-ready Porsche GT3 (few have complained about the automaker's PDK after driving the latest sports car from Stuttgart). In exchange for some moans, groans and gripes from enthusiasts, BMW's DCT mounted aft of the M4's inline-six will provide quicker acceleration and improved fuel economy.

Updated BMW X6 spied running the 'Ring in Germany

Following the debut of the X5 earlier this year, it shouldn't come as a shock that BMW is testing an updated X6 in its homeland. The Munich-based manufacturer trekked to the Nürburgring to test the lifted, four-door coupe it calls a Sports Activity Vehicle, while also giving us our first peak as to what the future holds for one of the weirder models in the brand's stable.
Mainly, we can safely expect the next X6 to get the same range of refinements made to its platform-mate, the X5, which debuted earlier this year. If we're lucky, that could mean an X6 sDrive35i, complete with rear-wheel drive with which to fling the big SAV about. Adding a rear-drive option could also broaden its admittedly limited appeal by lowering the cost of entry, which could serve the pricier X6 well. As a point of reference, the X5 sDrive35i is priced at $2,300 below an xDrive all-wheel-drive-equipped model.
The X6's top-flight xDrive50i model should get the same 45-horsepower bump as the X5 xDrive50i, thanks to refinements to its twin-turbocharged, 4.4-liter V8, while the 3.0-liter, turbocharged six-pot should remain unchanged. We wouldn't hold our breath for an X6 diesel to arrive, although weirder stuff has happened. Like the X5, though, this should be a pretty slim refit that improves an already competent package to go along with an expected increase in price.