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BMW i3 called 'most revolutionary car' since Ford Model T

The Ultimate Driving Machine, or at least one of them, may also be the Ultimate Engineering Success. Consultant Munro & Associates, which specializes in automotive tear-down analysis, pretty much said as much when taking an under-the-skin look at the BMW i3 plug-in. In short, the firm liked what it saw. Presenting at Detroit's Plastic's in Automotive conference this week, Munro CEO Sandy Munro called BMW's first mast-produced plug-in model the most revolutionary car "since Henry Ford's Model T." The car earned big points for its substantial uses of materials that are both lightweight (key for any plug-in's range) and recyclable. BMW has touted these advantages all along. In late 2013, the German automaker went as far as saying its use of carbon fiber reinforced plastic (CFRP) would reduce customer costs related to both repair and insurance. The i3 went on sale in the US last May and, by the end of the year, moved more than 6,000 units here. It sold almost 17,800 The i3 last November also was named the Green Car of the Year at the Los Angeles Auto Show, beating out models such as the compressed-natural-gas-powered Chevrolet Impala B-Fuel and the Audi A3 TDI diesel. Munro made news earlier this week when it offered a free i3 for anyone who bought the master- or OEM-level version of the report, though the report isn't cheap and that offered disappeared once Munro made his presentation. Check out Munro & Associates' press release below. Munro Discusses Groundbreaking Technology Finds from BMW i3 Teardown at Plastics in Automotive Conference; Offers New BMW i3 for Purchasers of Master-level Report DETROIT, Jan. 14, 2015 /PRNewswire/ -- During today's Plastics in Automotive Conference in Detroit, Sandy Munro, CEO of Munro & Associates, Inc., discussed – for the first time publicly – his consulting firm's findings from its extensive deep-dive teardown, costing and benchmark study of the BMW i3 urban electric car. During his presentation, "Deconstructing the BMW i3: Groundbreaking Technology and the Composite Car," Munro discussed the carbon fiber life module, polymer components, recyclability and safety of what he considers to be "the most revolutionary car in terms of creative engineering and manufacturing since Henry Ford's Model T." During the presentation, Munro focused on four crucial aspects of the BMW i3: the manufacturing of its carbon fiber life module; its polymer components; recyclability; and safety.

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.

Looking back at 84 years of BMW roadsters

Today BMW is a top player in the luxury vehicle market, but it wasn't always so. With origins as an airplane engine builder early in the 20th Century, it broke into the automotive industry when it bought Automobilwerk Eisenach in 1928. That German manufacturer was licensed to build the Austin Seven under the name Dixi DA-1, which could be had in a roadster body style. In 1929, BMW dropped the Dixi name, and by 1936, it was building a car it designed in-house, the 326 sedan. That was followed by the company's first roadster of its own design, the swoopy two-door 327 of 1937.
XCAR picks up there, and gives a history of BMW's iconic roadsters starting with the 327, ending with today's Z4, and covering everything in between - including the beautiful post-war 507 of 1957 and the funky, plastic-bodied 1989 Z1.
The video, which we've included below, is a good history lesson and a great chance to see a bunch of classic BMWs, spanning 84 years, all driven back to back within the safe confines of a racetrack. When you have a spare 20 minutes, go ahead and take some time to watch it.