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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.

New York Auto Show, Tesla Model 3, Alpina B7 | Autoblog Podcast #535

On this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Reese Counts and Senior Editor of Green John Snyder. We talk about the New York Auto Show and its highlights. We also discuss some of the cars we've had in the office including the Jaguar XF S Sportbrake and BMW Alpina B7. And of course, we'll help choose a new vehicle for a listener in our "Spend My Money" segment. Autoblog Podcast #535 Your browser does not support the audio element. Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown New York Auto Show Cars in the office: Jaguar XF S Sportbrake, BMW Alpina B7 Tesla Model 3 Spend my money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: Green Podcasts New York Auto Show BMW Jaguar Tesla Car Buying Used Car Buying Wagon Electric Luxury Performance Sedan 2018 new york auto show alpina alpina b7

BMW to finally put i8 Spyder into production

The BMW i8 Spyder might finally see production. The vehicle debuted in concept form over three years ago, but despite the coupe version having long since arrived in showrooms, the convertible has been nowhere to be seen. According to the latest reports from Germany, however, that's about to change. According to Automotive News, the company's new chief executive Harald Krueger told German publication Handelsblatt that we'll soon see the BMW i8 Spyder in production form. The prospect of open-air motoring under prodigious amounts of electric power sounds enticing, however we'll have to wait and see just what sort of roof mechanism the production model incorporates. The concept had removable roof panels, however the manufacturer tends to favor automatic roof setups – hardtops in the Z4 and 4 Series, or soft tops in the 2 Series and 6 Series. Around the same time, BMW could introduce a power upgrade in the form of a larger internal combustion engine and a higher-capacity battery to go with it. A 2.0-liter turbo four is tipped to slot in where the current three-pot sits, bringing output up to a solid 450 hp – and with a longer range to boot. If those upgrades to arrive – with or independent of the open-roof version – expect them to be implemented on the coupe as well as the roadster.