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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.

The next-generation BMW M5 starts here

The next-generation BMW 5 Series hasn't even arrived yet, but BMW is hard at work testing the hottest version of the popular sedan – the sixth-generation M5. Now admittedly, these photos might not look much like an M5. The wheels are big, but not uncommonly so. There's no wild and crazy body kit, or hugely flared wheel arches. But what's that in the back? Are those four exhaust tips? Why yes, yes they are. And take a second look at those wheels. Notice the pizza-pan-sized brakes and huge calipers? Yet another M5 giveaway. But as our spies rightly point out, even though this does represent development work on the next M5, it's a very early prototype. That could also explain the charge port on the driver's side front fender, a feature that we've seen on other 5 Series prototypes. This does not mean the next M5 will be a plug-in hybrid, however. What the next M5 will likely be, though, is all-wheel drive. This isn't a huge surprise, considering that the Mercedes-Benz E63 AMG has already gone AWD, while the Porsche Panamera Turbo and Audi RS6/7 have always had four driven wheels. BMW has even hinted at just such a development, with former M boss Dr. Friedrich Nitschke going as far as saying AWD could arrive on the next M5. "On our cars we are thinking of all-wheel drive, but it won't come before we get the successor of the M5 and M6," Nitschke said in an October 2013 report. "That's the timing and it's not practical to react in the current life cycles." At this point, it's simply too early to guess at when or where the next-generation M5 will debut. We're expecting the next-gen 5 Series at either the 2016 Geneva Motor Show or Auto China 2016 in Beijing. The next M5 could join it, although it's possible it'd get its very own debut at a later date.

Mercedes-Maybach GLS 600 and our new long-term Acura TLX | Autoblog Podcast #661

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder. This week, they talk about the cars they've been driving, including the Mercedes-Maybach GLS 600 and Audi A4, as well as the recently departed long-term Volvo S60 T8 and the new addition to the long-term fleet, an Acura TLX. In this week's news, they talk about the Stellantis merger completion, some more thoughts about GM at CES, BMW announcing an electric M car, an upcoming electric Lincoln Corsair and the possibility of an electric-only Ford Mustang in 2028. Autoblog Podcast #661 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 What we're driving:2021 Mercedes-Maybach GLS 600 2021 Audi A4 S Line 45 TFSI Quattro 2020 Volvo S60 T8 2021 Acura TLX A-Spec News:Stellantis is a thing now More thoughts on GM at CES BMW announces electric M car is coming this year Electric Lincoln Corsair-E coming in 2026, report says The next-gen Ford Mustang reportedly going all-electric, arriving in 2028 Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: