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BMW 1 Series prototype packs direct water injection

Just a few months ago, BMW showcased an M4 that was modified to serve as the safety car for the MotoGP racing series. The flashing lights and emergency equipment, however, weren't the only modifications BMW made to the performance coupe. It also packed an innovative new water injection system. And now it's furthering the development of that system by running it in a 1 Series hatchback as well. Revealed at the BMW Group Innovation Days 2015 event, this five-door 1 Series packs a three-cylinder gasoline engine – like the one found in a Mini or i8 – but fitted with the direct water injection system. In this application, the system sprays a fine mist of water – yep, regular old H2O – right into the combustion chamber. While mixing water with gasoline normally wouldn't be recommended, in this case it evaporates immediately and helps cool the engine from the inside, allowing it to run at higher efficiency. That cooler running engine brings with it several benefits. It delivers improved fuel economy and lower emissions, to start. It also allows for an earlier ignition point, higher compression ratio, and higher boost pressure in turbocharged engines, delivering increased output. It even cuts down on engine knocking (where combustion occurs spontaneously), reduces wear and tear on the engine, and makes better use of lower octane levels. If that sounds like a win-win-win... win (we're losing count of all the wins here), it's because BMW just may be on to something. Of course it does require a water tank to be fitted on board, which means added weight, but instead of requiring the driver fill up the water tank, BMW has fitted this prototype with a system that replenishes the water level from the air conditioning system when the vehicle is switched off. So unless it's being driven in a particularly extreme climate, it doesn't even need topping up. Add one more "win" to the list, then. Extra power, improved real-world fuel economy: Direct water injection enhances efficiency. With direct water injection for turbocharged petrol engines, the BMW Group has again succeeded in enhancing the capabilities of conventional engine technology through an ongoing process of refinement and improvement. The precisely controlled injection of water into the engine cylinders produces a cooling effect that boosts power and torque, particularly when operating at or near full throttle, while at the same time reducing fuel consumption and emissions.

Recharge Wrap-up: Renault's electric motors, BMW i3 is AM free

Why isn't AM radio offered in the BMW i3? Some drivers – particularly those interested in local traffic reports – have noticed its absence. BMW says that the electromagnetic interference from the electric drivetrain caused poor performance, and that while reception wasn't always terrible, it wasn't up to their standards. Rather than have customers complain to their dealers, who would be unable to do anything for them, BMW has disabled AM reception in the i3. Some customers have hacked their cars in order to enable the AM radio, despite possible warranty issues, and have found the reception to be acceptable. Read more at Green Car Reports. Saab's current parent company, National Electric Vehicle Sweden (NEVS), broke ground for production and R&D facilities in Tianjin, China. The facilities are part of joint ventures with the city of Tianjin and State Research Information Technology (SRIT). In addition to investments of over $190 million from SRIT and Teamsun, NEVS has received $1.6 billion in credit from the Bank of China to develop its business there. The new Tianjin factory will have a capacity of 200,000 new energy vehicles per year. The facility in Trollhattan, Sweden will provide manufacturing planning, training, and product supply for the Tianjin plant. Read more at Green Car Congress, and in the press release from NEVS. Renault is building the new R240 electric motor for the Zoe at its Cleon plant. The plant and its employees, which specialize in the Energy dCi diesel engine, have adapted to produce high volumes of the electric motor as well, including a 6,000 hours of training for the staff and millions of dollars in investments. "We aim to become the leading powertrain plant for the Alliance," says Cleon plant director Mendi Ammad. The plant is capable of producing 50,000 units of the R240 motor per year, with that number expected to double in the future. Read more about the plant and the production process the press release below. NEW ELECTRIC MOTOR STRENGTHENS POWERTRAIN EXPERTISE AT CLEON ZOE's new electric motor, unveiled at the Geneva Motor Show, is a 100% Renault motor manufactured at the French site of Cleon, already specialized in highly technical powertrain production. Until now, the flagship of the Cleon plant was the Energy dCi (130, 140, 160) internal-combustion engine. The diesel unit with advanced technological content has made a name for itself at Groupe Renault, the Alliance and with our partners.

BMW M4 Convertible poised for Goodwood unveil

It shouldn't be a shock that BMW is working on a convertible version of the M4. Not only have we caught it testing twice, but this is an automaker that seems willing to build a vehicle for nearly every buyer's needs. Evo claims that the high-performance droptop is going to debut at this year's Goodwood Festival of Speed in England from June 26-29.
Judging from the spy shots we've seen, the M4 Convertible will consist of a retractable hard top like the 4 Series cabrio. Other than the roof, there aren't expected to be many changes from the coupe. The engine will be the same turbocharged, 3.0-liter inline six-cylinder engine, but the added weight of the roof and its mechanism may take a small bite out of performance.
We spoke to BMW USA about the rumor and were told that it has no comment at this time. After the M4 Convertible, Evo claims that BMW is working on a M4 Gran Coupe. How that would be all that different from an M3, isn't exactly clear.