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2015 BMW Alpina B6 xDrive Gran Coupe

Alpina has been lovingly modifying BMWs for half a century, but as we learned during a tour of the company's HQ in Buchloe, Germany, Alpina has been in the wine distribution business for nearly as long. The company has an estimated million bottles on reserve in two warehouses and a beautiful wine cellar/tasting room on property in western Bavaria, just yards from where its 1,500 hand-crafted automobiles per year are produced.
What does that have to do with the new B6 Gran Coupe? Well, it may help make sense of the overall character of Alpina's automobiles, especially vis-à-vis the similarly priced, similarly powerful M Cars that BMW sells in far greater numbers. Alpinas are built by wine connoisseurs for wine connoisseurs, or wine connoisseur types; they are not rip-snortin' racecars for the road - that's M's domain. Alpinas are esoteric, rich in character and nuanced. But make no mistake: they are very, very fast.
Our brief first drive of the B6 Gran Coupe - the only 6 Series-based Alpina we'll get in the US for 2015 - took place on German autobahns and Austrian alpine roads, where the car is more at home than anywhere in the world, both literally and figuratively. With 540 horsepower and 540 pound-feet of torque on tap from its twin-turbocharged 4.4-liter V8 and xDrive all-wheel drive, the B6 is said to be able to hit 60 miles per hour in 3.7 seconds on its way to a top speed of 198 mph, a massive 43 mph faster than the M6, which is electronically limited to 155 mph. Yet even at insane speeds - we saw an indicated 190 mph on one particularly lonely stretch of Autobahn - the B6 feels more luxurious than sporty, taking the countenance of a low-slung Bentley Continental GT or an Aston Martin Rapide S, not a knife-edged supercar. It doesn't feel scintillating like a Porsche 911 GT2; rather it feels rock steady, like the 4,780-pound luxury sedan it is.

2015 BMW i8: Autoblog Technology of the Year finalist

Traditionally, nominations for the Autoblog Technology of the Year award are earned for specific developments - a new-think powertrain, a uniquely developed material, a groundbreaking smartphone app, or what have you. In the case of BMW's marvelous i8, it so bristles with novel applied sciences and fresh features that we broke with tradition and nominated the entire car.
We just couldn't help ourselves. Oh, we could've focused on the i8's carbon-fiber monocoque, or its well-resolved plug-in-hybrid powertrain that incorporates a tiny 1.5-liter three-cylinder engine and an electric motor, or its seamless through-the-road all-wheel drive. This is a car that will even have frickin' laser beams for headlights - at least it will for our friends in Europe (and it will in the US, should our legislators ever catch up).

Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.