2000 Bmw 528it Sport Wagon, Blue W/tan Interior - Excellent Condition on 2040-cars

Auto blog

BMW M4 Convertible poised for Goodwood unveil

It shouldn't be a shock that BMW is working on a convertible version of the M4. Not only have we caught it testing twice, but this is an automaker that seems willing to build a vehicle for nearly every buyer's needs. Evo claims that the high-performance droptop is going to debut at this year's Goodwood Festival of Speed in England from June 26-29.
Judging from the spy shots we've seen, the M4 Convertible will consist of a retractable hard top like the 4 Series cabrio. Other than the roof, there aren't expected to be many changes from the coupe. The engine will be the same turbocharged, 3.0-liter inline six-cylinder engine, but the added weight of the roof and its mechanism may take a small bite out of performance.
We spoke to BMW USA about the rumor and were told that it has no comment at this time. After the M4 Convertible, Evo claims that BMW is working on a M4 Gran Coupe. How that would be all that different from an M3, isn't exactly clear.

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.

Recharge Wrap-up: Tesla Gigafactory gets high-tech neighbors, BMW i8 still comes with a long wait

Switch plans to build a large data center near the site of Tesla's Gigafactory battery production facility in Reno, Nevada. The 3 million square-foot facility in the Tahoe-Reno Industrial Center will cost $1 billion to build, and eBay is expected to be the main tenant when the first portion is finished in 2016. Apple is also building a data center nearby. One draw for companies like Switch, Apple and Tesla is access to the region's clean power, and the Reno area could become the next big center for high-tech manufacturing. Read more at GigaOm. Daniel Sparks of investing website The Motley Fool has shared his insights after living with the Tesla Model S for four months and 10,000 miles. After driving his 85-kW version through various conditions, including a 2,200-mile road trip, Sparks is optimistic about the car and the company behind it. From his experience, he says that charging is easier than most people believe, and that range anxiety isn't a problem. He calls Tesla's growing Supercharger network a "game changer," citing their quickness, availability and the fact that charging is free for life. He also says that most people seem to know very little about the car. Still, he calls Tesla stock "pricey" with the growth already priced into the shares. Read more at USA Today. The wait for a BMW i8 is about a year, despite efforts to ramp up production. BMW is reducing production of the i3 in order to increase the number of i8s by more than 50 percent for 2015, but the bigger batch won't become available in the US until October. Ludwig Willisch, CEO of BMW North America, says that he doesn't expect cheap gas to slow sales of the i3. He also denies rumors of an i9 positioned above the i8. The new 7 Series appears to be taking some cues from the i8, though, with carbon fiber, magnesium and aluminum construction, as well as improved connectivity. Read more at Automotive News.