2005 Bmw M3 (interlagos Blue, Zcp, E46) on 2040-cars

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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.

VW Golf R pitted against BMW M235i in enthusiast's choice battle

Most people don't have two, open spots in their garage to fit a practical daily driver and a fire-breathing performance car for the weekends. That's what makes vehicles like the latest Volkswagen Golf R and BMW M235i just about perfect for the average person. Both of these Germans can lope around as a commuter 90 percent of the time and be perfectly comfortable. However, when you want to walk in the door with a big smile on your face, you can take the back roads home and get a real thrill from them.
In his latest short video, Chris Harris from Drive tests these surprisingly comparable German performance cars. Both of them offer buyers in the neighborhood of 300 horsepower, with the BMW winning out with 320 hp. However, the Golf R gets standard all-wheel drive, which is now an option on the M235i. Harris has quite positive things to say about these Europeans, but you're going to have to watch the video to hear just what he thinks.

2021 Ford Mustang Mach 1 revealed, plus driving the BMW M8 Convertible | Autoblog Podcast #632

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Producer Christopher McGraw and News Editor Joel Stocksdale. Before they get to this week's big news, they talk about the cars they've been driving, including the Toyota Land Cruiser, Range Rover Velar SVAutobiography Dynamic Edition, BMW M8 Convertible and BMW 840i coupe. Then they talk about Ford's big reveal of the 2021 Mustang Mach 1. Finally, in lieu of the regular Spend My Money segment, they talk about how Joel recently spent his own money on the newest edition to his personal fleet, a 2013 Volkswagen Beetle. Autoblog Podcast #632 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 Cars we're driving: 2020 Toyota Land Cruiser 2020 Range Rover Velar SVAutobiography 2020 BMW M8 Convertible 2020 BMW 840i Fords reveals 2021 Mustang Mach 1 Spend Joel's Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: