2006 Bmw M3 Base Convertible 2-door 3.2l on 2040-cars

Auto blog

BMW expounds on i8 design and performance in new videos

At this point, there isn't much we don't know about the 2015 BMW i8, so BMW is starting to focus its attention on reassuring consumers that the future of BMW won't abandon the past. In these two recently released videos, BMW answers questions prospective buyers might have about about the new model's design and performance.
In the design video, BMW explains how the i8's styling is intended to be practical, with aerodynamics and fuel efficiency in mind, yet still have a sporty and dynamic look. The performance video aims to show that the plug-in hybrid can be fuel efficient while still delivering plenty of performance, and it shows an animation about how the i8's drive systems work together. Scroll down to watch both videos on this bold green supercar.

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.

Next BMW X1 moving to smaller, lighter FWD-biased platform

BMW's decision to make the upcoming 2-Series Active Tourer front-wheel drive has been polarizing to say the least, but like it or not, that is the direction the company will go in the near future - one rumor put the number as high as 23 front-wheel-drive models for Mini and BMW combined. The next-generation X1 won't send all its power to the front wheels, though, when it launches in early 2016. While it will use the same platform as the Active Tourer, rumors suggest all models will use all-wheel drive - at least at launch.
A "high-ranking," unnamed BMW manager confirmed to AutoWeek that the new model will switch to transversely-mounted three- and four-cylinder engines and the same six-speed manual and eight-speed automatic transmissions as the Active Tourer. The new, smaller platform will allow for more efficient packaging, and despite the smaller size, interior space will remain comparable. All the changes should make it significantly lighter too.
Don't start wailing just yet because BMW surely won't be entirely abandoning sporty models. AutoWeek claims that the Bavarians are working on a higher-output version of the 2.0-liter turbocharged four-cylinder with power closer to 300 horsepower, about a 72-hp boost. It's also rumored to offer a sporty version of the X1 that may be called the X2.