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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.

Watch this BMW take flight at Viru Rally

An E36 BMW 3 Series might be a good choice for a lot of purposes - a long road trip, a track day, rallycross, impressing your friends... but a full-on rally? It's rear-drive when the best rally machines are front- or all-wheel drive. But that didn't stop Pritt Koik and Alari-Uku Heldna from entering their stripped-out E36 in the Viru Rally in Estonia... or from getting some big air time when they did.
Fortunately the jump was not just caught on video... it was caught on video from three angles: two from the side of the rally stage and one from inside the cockpit. Check out all three below to see how this particular BMW got back into the aircraft business.

BMW i3 EV continues to shed camouflage

As BMW gets closer to introducing the production version of its plug-in i3, we keep seeing the hatchback being tested with lessening degrees of design-obscuring camouflage. Last we heard, BMW is expecting to have the i3 ready by the end of this year, and the swirly, blue camo does little to hide its basic design in these latest spy shots.
We get our first clear look at almost everything above the wavy beltline including the silver roof edges and matching mirror caps, and it can't hide the dip in the beltline behind the B-pillar - matching what we've already seen on the i3 Coupe Concept unveiled at the LA Auto Show last year. Another change we notice is the lower portion of camo removed from the front fascia allowing us to see the air opening and the black, vertical inserts leading up to the fog light bezels. Judging by the "Hybrid Test Vehicle" stickers on the side of this prototype, we can only assume that this is the optional range-extended model.