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2015 BMW M4 gets initiated into the club

It's easy for enthusiasts and traditionalists to give BMW a hard time these days, what with its plans to add more front-wheel drive models and seeming move away from more emotionally connected cars. However, the push for perfection that underscored its old Ultimate Driving Machine motto is still in there, especially in its M models. In fact, the first M4 recently made it to US shores, and the company thought the only appropriate way to celebrate was to introduce its new coupe to some of its high-performance forefathers.
The M4's initiation into the M car brotherhood involved bringing together no fewer than 52 classic and newer models - including four racecars and many privately owned vehicles - to an empty parking lot and letting the coupe drift and slalom around them to say hello. According to BMW, there was a combined 11,566 horsepower on hand. It takes a pretty trusting owner to stand back and watch as a brand-new vehicle slides its tail out with the rear wheels smoking within feet of their pride and joy. Stay tuned until the end where the owners and their cars get a shout out in the credits. Scroll down to read BMW's press release about it.

Someone's willing to pay $16,000 for a hollow, non-working BMW i8

There is an unusual BMW i8 for sale on eBay right now. Unlike your average – and by that we mean "working" – i8, this one pretty much just sits there, looking pretty. See, the i8 in question is just a promotional body shell. It's fullsize and being sold (we think) by a legit BMW dealer (Laurel BMW of Westmont), so it's got strong ties to the real thing, but there's nothing inside. In fact, you can't open the doors or windows and the wheels don't move, unless you count the tiny rolling castors that are a part of the prop. There is no fancy plug-in hybrid powertrain – no powertrain of any sort, in fact – and it was "professionally crafted just for BMW dealers." The headlights do turn on, though, so that's something. What's most impressive, though, is that there are 50 bids for this non-working BMW. In fact, the bidding has climbed up to $16,000. For a car that can't fulfill its mission as a car, that's pretty impressive. Oh, and those bids have not yet hit the reserve price, so the dealer is obviously hoping it can get more money for this hollow BMW. The official base MSRP for a working i8 is $135,700. The first i8 delivered in the US, a special edition for Pebble Beach, just sold for $825,000.

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.