Auto blog

2015 BMW M4 Convertible will give the best bad hair days

BMW officially unveiled the 2015 M4 Convertible at the Javits Center in New York this morning. The droptop, which will slot in next to the M4 Coupe in BMW's performance line, offers infinitely more headroom, fresh air and sunshine for those that want a little more great outdoors and tousled hair with their M experience.
Visually, the M4 convertible is similar to the coupe, and carries on the hardtop's athletic stance with a long wheelbase, short front overhang, aerodynamic mirrors and in the case of this showcar, optional yellow-painted brake calipers. The car's expressive, angry face is perhaps the most notable aspect of its styling, screaming "get the hell out of my way!" with its signature twin-bar kidney grille, trio of air intakes and squinty LED headlights. Inside, the convertible employs three-temperature neck warmers (for chilly top-down days), an absurd amount of "M" logos and a wealth of luxury and technology features.
The rear-wheel-drive convertible uses the same engine as the coupe: a high-revving, twin-turbocharged 3.0-liter inline six producing 425 horsepower and 406 pound-feet of torque, mated to either a six-speed manual or a seven-speed M dual-clutch transmission. BMW says the car can make a 0-60 sprint in just 4.4 seconds when equipped with the manual.

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.

BMW: Newfangled Idea

Former Today Show hosts Katie Couric and Bryant Gumbel joined the all-new BMW i3 for its 2015 Super Bowl spot. The 60-second spot harkens back to the pair's bewilderment over the Internet way back in 1994, before cutting to the revolutionary electric Bimmer, which elicits a similarly perplexed reaction. It's a clever spot for BMW, tying its perhaps misunderstood EV to another formerly unfamiliar piece of tech. We're no strangers to the i3, but if you are, check out our detailed review on the electric hatch.