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BMW M4 Concept bows, takes handoff from M3 Coupe

Remember how, when the first BMW M4 Concept images leaked earlier today, we told you the official information would be coming later this evening? Well, scratch that. The whole kit and caboodle is now online, meaning all the official details are below, as well as a full gallery of high-res images above.
The replacement for the M3 Coupe, the Concept M4 Coupe shares a number of styling similarities with its dearly departed forbearer. To us, it's kind of like a mishmash of greatest hits from the new 4 Series and the old M3. The 4 Series headlights have grown on us, and the side grilles, which are part of BMW's Air Curtain and Air Breather system, are functional.
The power dome in the hood is smaller than on the M3, but is of a similar shape, while the rear diffuser and exhaust treatment look like they're lifted straight from the old car, aside from being finished in carbon fiber. Speaking of which, the carbon fiber roof sports a new touch, a cool BMW M tri-color that runs the length of the roof on the driver's side. The 20-inch M alloy wheels come in a twin five-spoke design, which has sort of become a calling card of BMW's M cars in recent years. Hiding behind those meaty wheels are M's carbon-ceramic brakes.

BMW i8 with 500+ horsepower in the cards?

While BMW makes plenty of machinery to keep enthusiasts interested, its most enticing models are often based on more ordinary ones. That's what made the arrival of the i8 so captivating, emerging as the first stand-alone BMW sports coupe since the M1. But if its dual purpose - trying its best to both embrace the earth and traverse it rapidly - somehow left you disappointed, the next development could prove to fix that.
According to Automobile, BMW is working on a more potent i8S model. The hardcore version of the hybrid sports car would offer more power and a stiffened chassis to make it that much more aggressive. The Bavarian automaker is reportedly still evaluating two potential powertrain options: The first would pair a 2.0-liter twin-turbo four-cylinder good for 320 horsepower to an electric motor with another 204 hp. The second would use a 3.0-liter straight six with 480 hp and an electric motor with 109 hp. Both would be mated to a nine-speed dual-clutch transmission and an integrated starter motor packing an extra 27 hp.
Either way, we'd be looking at a combined output well in excess of 500 horsepower - far more than the existing i8's 228-hp turbo three and 129-hp electric motor - dropping the 0-62 time down from 4.1 seconds to an estimated 3.5. Couple that to a more advanced carbon chassis, wider tires and other goodies, and the i8 would be transformed into a far more capable performance machine than it already is.

Two rare Alpina BMWs given the Petrolicious treatment

Alpina is getting more and more ink because of because of that rolling cannonade known as the B7 and its closer ties with BMW. The company's tuning business dates to 1962 when Burkard Bovensiepen began fiddling with Weber carburetors, then his company began racing in 1968 and was eventually certified as an automaker in 1983.
Two of its rarer specimens from those early years have gotten a glance from the folks at Petrolicious: the E24 B10 and E24 B7S. Based on the BMW 6 Series, the Alpina versions made one of the most special coupes from the Eighties even more so. According to the video, there were only 44 B10s made, and the turbocharged, 333-horsepower B7S - this was in a luxury coupe in 1982, mind you - saw only 33 examples produced.
You won't be sorry to find out more about them - and see how they run - in the Petrolicious video below.