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BMW X4 opens up alongside its boxier brother

It doesn't seem so long ago that BMW (not to mention Audi, Volvo and a handful of other European automakers) weren't in the crossover market. But it's been over a decade since BMW began producing the first-gen X5, and in the fourteen years since, the Bavarian automaker has steadily expanded its portfolio to include the X1, X3 and X6.
The next to join the family will be the X4, which is essentially to the X3 what the X6 is to the X5. That is to say, basically the same vehicle, only with an (arguably) more stylish but less utile roofline. Previewed in concept form at the Shanghai Auto Show half a year ago, the X4 has been snapped by our plucky paparazzi in the past, but this is the first time we've seen inside.
Not only that, but the prototype in question was spotted next to the current X3 on which it is based, which gives us ample opportunity to see the differences between them. Of course, that still primarily comes down to the slantback profile, because otherwise, the two are essentially the same inside and out. Or at least they will be: many of the differences between the two are expected to port over to the X3 when it's refreshed next year, including some subtle interior upgrades - just not the roofline.

Next BMW M3 sedan to be plug-in hybrid?

BMW has a lot in mind for the next-generation 3 Series and 4 Series cars, and we're hearing about it now even though they're not expected for another three or four years. The sedan is expected to be lighter, wider, with a longer wheelbase and a lower center of gravity. Rumored tech updates include the water injection system debuted in production on the BMW 1 Series, and the 4 Series convertible might go back to a fabric top. Now The Detroit Bureau reports BMW insiders have revealed that the next M3 will get a plug-in hybrid drivetrain. We've heard about plug-in variants in the mix for the G20 3 Series using a small displacement four-cylinder, but not on the M3 and possibly M4. The goal is familiar, according to the "several senior company officials:" to improve the performance while reducing the emissions footprint. Apparently, the power unit being worked on uses a "similar engine" to the 425-horsepower, 3.0-liter inline six employed at the moment, with power sent to the rear wheels. Electric assistance would come from a KERS-like unit that would also - and only - send power to the rear wheels. Torque is said to go up at least 73 pound-feet from the 406 lb-ft available currently, and all-electric range might be as much as 20 miles. Plenty of carbon fiber will help offset the weight of the lithium-ion batteries. Despite company obfuscations, we know BMW is working on a hybrid powertrain for a vehicle rumored to be called either i5 or i7, and would use one or two electric motors to drive the front wheels while the traditional ICE drives the rear wheels. This potential M3 and M4 powertrain would be an offshoot of that engineering. Automobile speculates there will be electric turbochargers and a horsepower number around 500. Related Video:

The 570-hp AC Schnitzer ACL2 Concept tries to one-up the M2

AC Schnitzer's new ACL2 concept aims to outdo the BMW M2 at the Geneva Motor Show. To out-muscle the latest M car, the German tuner starts with an M235i and installs the M4's 3.0-liter inline-six. The company also turns up the power to 570 horsepower – a healthy upgrade over 365 hp from the M2's 3.0-liter. The power bump lets the ACL2 reach 62 miles per hour in 3.9 seconds and hit a top speed of 205 miles per hour, AC Schnitzer claims. Those figures make the coupe a few tenths quicker than the M2's 4.2-second to 60 mph sprint, but BMW limits its creation to 155 mph. AC Schnitzer's long list of upgrades makes the impressive performance possible. To get the most out of the engine, the company installs a carbon fiber intake. It also replaces the most of the exhaust, including the downpipe, catalytic converter and tailpipes. Carbon-ceramic brake discs make sure a driver can control so much power, and the company fits a fully adjustable suspension to aid handling. The ACL2's body is too loud for our tastes even through the subdued dark green paint, but the extensive use of carbon fiber parts should keep weight down. AC Schnitzer adds a road-scraping front splitter with canards at each corner. The rear has a similarly aggressive diffuser and huge wing. The wider fenders also add 5.5 inches to the coupe's width, and 20-inch wheels sit underneath them. The ACL2 doesn't get to challenge the M2 on the Autobahn yet because AC Schnitzer says it's just a concept. The coupe exists simply for the company's product development. However, if you want to put all of these bits together, the final cost would be 149,000 euros ($161,500 at current exchange rates), the tuner claims. Related Video: