2009 Bmw Z4 Sdrive30i Roadster on 2040-cars

Auto blog

Pure black BMW i8 hydrogen fuel cell prototype on the track

Largely coated in matte black paint with just a few touches of dark blue contrast, the BMW hydrogen fuel cell-powered i8 prototype looks stealthy just sitting still. Now, that ninja-like styling is taking to the track in this video to prove that its performance doesn't come with much noise. The quiet hum of the tires and an odd whir from the rear are all that you hear coming. As this i8 prototype picks up speed around the circuit, the sounds that the drivetrain makes just get weirder. When moving slowly, you can pick out the usual whine that's expected from conventional electric vehicles. However at higher velocities, the coupe almost makes a noise like its constantly exhaling. Along with the recently unveiled BMW 5 Series Gran Turismo hydrogen-fueled concept, this sneaky looking i8 is part of BMW's technological push to become a greener automaker. The company is also prototyping a turbocharged engine with water injection and new plug-in hybrid powertrains. Although this low-slung coupe is by far the most attractive of that bunch. We might not be too far away from actually seeing this tech on sale on models bearing the Bavarian brand's roundel, either. Thanks to collaboration with Toyota, the company wants to have fuel cell components ready by 2020, and sales could start early in the decade. Hopefully all of the company's FCEVs look as menacingly great as this i8 by that time, though.

BMW 6 Series Convertible gets a little work done for 2015

Truth be told, I've never really found the modern BMW 6 Series to be a particularly attractive car, in Coupe, Convertible, or sedan Gran Coupe forms. This current generation certainly looks a whole lot better than the Bangle-fied Six that came before it to my eyes, but on the whole, I find much of the car's design to be fussy and awkward. There's a new 6 Series on the way, scheduled to arrive sometime in 2017 or 2018, but to hold us over until then, BMW is freshening its current range, as evidenced by this convertible prototype our trusty spies recently caught testing.
Will the changes to the current 6 Series be an improvement? Perhaps. Up front, there are restyled headlamps and a new front bumper, and at the rear, BMW has redesigned the LED taillamps to bring them more in line with the rest of the company's offerings. Aside from those modest tweaks, we don't expect much more to change on the Big Six - the interior will likely carry over with some minor tweaks (or new colors), and it's possible the powertrains could be massaged gently for gains in either power, efficiency, or both.
Whether you think this new look is pretty or not, this freshened 6 Series will likely debut sometime next year, while BMW's engineers and designers craft the all-new version. See it from several angles in our gallery, above.

BMW M3 and M4 will rock 430 hp from twin-turbo six with standard manual [w/video]

We're not sure which spec we're most intrigued by for the new BMW M3 and M4: the twin-turbo six-cylinder with 430 horsepower and "far beyond" 369 pound-feet of torque, the 3,300-pound curb weight or the standard six-speed manual transmission with automatic throttle blipping on downshifts. That engine is fitted with both Valvetronic and Double-Vanos, twin-wire arc-spray coating in the cylinders instead of liners to save weight, a track-ready cooling system with additional radiators, a forged crankshaft, dry-sump lubrication and a magnesium oil sump. BMW says its "high revving concept" has a redline beyond 7,500 rpm.
In the M4, it will be pulling a coupe with "a weight of just under 1,500 kilograms," which is 3,300 pounds to you and me. That number is said to include no driver and 90 percent fuel, but we're still waiting on the exact number and specs. BMW says it's "around 80 kilograms lighter than a comparably equipped predecessor model," putting the power-to-weight ratio at something like 7.68 pounds per horsepower at the same time as it helps reduce fuel consumption by 25 percent. The use of carbon fiber reinforced plastics (CFRP) for the roof, drive shaft (with no center bearing), trunk and front strut brace, and forged aluminum for suspension components, have aided in the weight loss. This time around, the sedan - the M3 - will also get a CFRP roof.
The default option will be a six-speed manual.