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

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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.

Permanent erection lawsuit against BMW thrown out

The California man who claimed that he suffered from a 20-month erection after a four-hour ride on his BMW K1100RS motorcycle (similar model pictured above) has had his case dismissed. It seems the court found his claims too hard to believe.
Henry Wolf filed a product liability lawsuit against BMW and seatmaker Corbin-Pacific in the California Superior Court in April 2012 after he claimed a motorcycle ride in September 2010 caused a long-term case of priapism from the "ridge-like" saddle design. He asked for compensation for lost wages, medical expenses and emotional distress from both companies.
Nearly two years later, according to Visor Down, Judge James J. McBride decided that the case didn't have enough supporting evidence. A urologist testified that the plaintiff had priapism, but the court rejected the testimony of a neurologist who claimed the motorcycle's vibration caused the disorder. The defendants presented testimony from the bike's former and subsequent owners. Corbin-Pacific CEO Mike Corbin also spoke in the company's defense.

BMW C 650 scooters refreshed with Side View Assist

Beyond just building a full lineup of automobiles and a plethora of motorcycles, BMW is a player in the scooter market, too. As part of a refresh to the company's C650 GT and Sport models, the GT is now available with an optional Side View Assist blind-spot monitoring system. This marks a first for the two-wheeled segment. As the demonstration video above shows, Side View Assist is quite similar to what's found in many modern automobiles. The tech uses sensors positioned at each corner to monitor over 16 feet around the scooter. If the system detects a vehicle hanging out in the blind spot, then the rider sees a triangle as warning on the mirror stalk. Both the C650 GT and Sport fall into the niche known as maxi-scooters that offer much of the capability of a more traditional motorcycle. They're quicker than the little models you might see puttering around city streets, but maintain the foot-forward riding position of that classic design. For this refresh, the BMWs get an updated CVT with a revised ratio spread, and the 647cc inline two-cylinder engine is offered in 59- and 47-horsepower forms. Both scooters are quite rider-friendly, too. With this new update, stability control joins anti-lock brakes on the list of standard safety features. There's an automatic daytime riding light, and suspension setup is tweaked for a more comfortable ride. BMW leaves absolutely no detail unexplored in the company's announcement, below. 1. The new BMW C 650 Sport. The new BMW C 650 GT. (Short version) With the new BMW C 650 Sport and C 650 GT, BMW Motorrad continues its series of premium vehicles in the maxi scooter segment. Perfect for the city and urban environment, they combine practicality and cost-efficiency with maximum riding fun and touring comfort. In addition to this, they also provide enjoyment for riders with sporty ambitions on winding country roads as well as riding fun on lengthier tours, too. The new C 650 Sport and C 650 GT – dynamic maxi scooters for sports, touring and urban cruising. The differing conceptual emphasis of each of the two BMW maxi scooters enables a broader target group to be addressed than previously: the C 650 Sport is geared towards riders with a sporty bent while the C 650 GT sets its sights on those who attach greater importance to comfort and touring capability. The new C 650 Sport and the new C 650 GT now go further towards addressing these aspirations.