2007 Bmw Z4 Roadster 3.0si on 2040-cars

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New BMW i3-like Visio.M EV concept uses lightweight resin

It's not a new version of the BMW i3, but an updated version of a lightweight concept car from SABIC, BMW, the Technical University of Munich, Daimler and others does bear a certain resemblance to the well-designed plug-in city car. From the black "glass" in the hatch to the angled line tail lights to the up-and-down window line, you can see a sort of family resemblance (see an i3 comparison photo here). And, of course, they both have an electric powertrain. But the changes made to the new lightweight urban electric concept vehicle is more of an exercise in what's possible rather than a way to evolve the i3 and i8 into a broader i family of vehicles. Even so, what we see here is interesting, since SABIC found all sorts of new ways to take weight out of the car as part of the Visio.M (Visionary Mobility) project, which was first announced in 2012. Let's start with the window material, which as you might guess from the quotation marks above, is not made of glass but is instead SABIC's Lexan polycarbonate (PC) resin plastic. The lower weight (the PC helps shed about 29 pounds) adds two miles of range while the PC resin has better thermal conductivity compared to glass and so does even more because the HVAC system can be more efficient. According to SABIC's computational fluid dynamics analysis, an extra 9-10 miles of range, in fact. Without the battery, this concept weighs just 992 pounds. Remember, BMW already made a lot of weight-reduction measures in the i3 thanks to carbon fiber reinforced plastic, so to make the "glass" lighter would only help boost efficiencies on a production vehicle that uses a resin like this. Read more below. SABIC's LEXAN™ resin delivers weight savings and thermal efficiency for new ultra-lightweight electric car concept developed by BMW-led Visio.M Consortium Munich, October 20, 2014 Today, at the Technical University of Munich (TUM), BMW, Daimler, TUM scientists and a consortium of industry participants showcased a lightweight urban electric concept vehicle with various advances, including an all-plastic design of the car's windows. The windows are made of LEXAN resin, a polycarbonate (PC) material, and coating technologies from SABIC, a leading developer of PC glazing for automotive windows and many other thermoplastic solutions for the automotive industry.

2015 BMW 4 Series Gran Coupe

It's hard to say what a coupe is anymore. Is it merely a car with two doors? Does it have to have an arching roofline? Do frameless windows count for anything? Can a five-door hatchback or even an SUV be a coupe? At some point in the last few years, nearly everything we thought made a coupe a coupe has been challenged by something that calls itself a coupe, but to most people isn't. Our friends at BMW have led most of this line of questioning.
The new 2015 BMW 4 Series Gran Coupe is one of the latest Bimmers to challenge the moniker (which also challenges the idea of "Gran," for that matter), and unlike some of its other "coupe" variations - we're looking at you, X6 - this one is a pretty one. The 4 Series Gran Coupe is essentially a four-door version of the 4 Series, which is itself a two-door version of the 3 Series. Huh? Wouldn't that simply make it another 3 Series? Of course, but this one is prettier, as it uses the 4's sexier body styling, with its lower nose, wider-looking stance and edgier lighting graphics. It is also technically a five-door hatchback, not a sedan per se, and it utilizes frameless side door glass, which apparently does count for something in BMW coupe-land. Significantly, the 4 Gran Coupe's wheelbase is identical to the two-door; if it was longer - as is the case with the 3 Series and 5 Series hatchbacks - that might make it a "Gran Turismo." Confused yet?
We recently got our first chance to drive the 4 Series Gran Coupe at a press launch in Spain, and while the only version we were given was a rear-drive 428i Gran Coupe with the M Sport contents, the harrowing roads around Bilbao gave us a good idea of what this car is all about from a driving dynamics standpoint. Here's some of what we found:

Car subscription services: A slow, expensive start — but the potential is huge

Americans are used to paying for subscriptions — to magazines and cable television, for instance — but experience shows they'll cancel when the price of admission gets too high, or there are more tempting alternatives. Cord cutters ditched nearly 1.5 million pay-TV subscriptions in 2017, according to a survey by Leichtman Research Group. Cable TV started out cheap with basic offerings, and then got expensive. The auto industry's subscription offerings are new, but they're starting out costly, and not price-competitive with traditional leasing. The upside is that they take the hassle out of car ownership for busy people by letting the service take care of maintenance, insurance, licensing and taxes. And they give consumers choice, often allowing relatively painless switches between different cars in the automakers' lineup. Subscription services also point the way toward an ownership-free auto experience, and offer an easy transition to a potential world where ride- and car-sharing will be dominant. Subscriptions are here to stay, but consumers may take a while to "get" them. Lincoln's subscription service for lightly used 2015 to 2017 models, offered through the Ford-owned Canvas beginning this year, got off to a slow start. Many early subscribers canceled. Last month, Cadillac announced it would " temporarily pause" its $1,800-per-month Book subscription service for "adjustments" as of December 1. According to the Wall Street Journal, "Snags with the back-end technology used to support the service made some customer-service functions tedious and time-consuming, adding costs for the company." The challenge for automakers is to come up with a strategy that offers consumers a compelling, affordable option to regular ownership, and one that can also make a profit. I think they'll find that sweet spot, but they're not there yet. Jack Nerad, former executive editorial director at Kelley Blue Book and author of " The Complete Idiot's Guide to Buying or Leasing a Car," points out that "A lot of people expected that subscriptions would be very valuable for people who wanted inexpensive transportation, but the reality is quite the opposite. Subscriptions are offering more choices for the wealthy.