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BMW reveals M4 safety car with innovating water injection system [w/video]

Racing series don't just pick their safety cars at random, or use just whatever car is lying around. These days the car that sets the pace at the front of the pack is typically provided through consideration by a sponsor. In the MotoGP series, that's BMW and its M division, which have served up the Official Car of MotoGP since 1999. What you're looking at is the latest, and it packs some innovative technology on board. Aside from the matte black wrap with BMW's iconic striped livery, upgraded aero kit, retrofitted interior and emergency equipment, this BMW M4 coupe packs a new injection system under the hood. Only instead of injecting fuel, it injects water into the combustion chamber – something that wouldn't usually be recommended, but BMW insists actually aids in the combustion process. The idea is that the temperature of the air being mixed with the fuel inside the engine is usually hotter than ideal, so the system injects a fine mist of water into the collector in order to reduce the air's temperature... sort of like one of those hydrating misters at an amusement park or outdoor mall, but in an even hotter environment. The system brings the temperature of the air down to a more optimal temperature, helping it combust better. The process is said to yield a number of positive effects. For one, it reduces knocking. For another, it can make more out of lower-octane fuel where higher octane isn't available. It also can control the adverse effects of higher ambient temperature on the combustion process. But most of all, it increases output and reduce fuel consumption by around eight percent. Whether that eight percent is worth the added weight of the system – particularly with water pump and a 1.3-gallon tank in the trunk – is up for debate. But we'd imagine that the Bavarian engineers have weighed very carefully. Of course there's also the matter of refilling the water tank, which BMW says would be carried out whenever the safety car is refueled, but in real-world conditions would only necessitate attention once every five top-ups at the gas station. By now you might have guessed that BMW probably didn't develop this system just for the MotoGP safety car, and isn't planning on keeping it confined to the racetrack. Instead it's being tested and demonstrated on the safety car before being rolled out on production models in the future.

BMW 2 Series, X5 get their M Performance parts on

BMW models come in a number of flavors, from their standard guises to M Sport variants and M Performance models to full-on M muscle machines. But if you want to pick and choose the degree to which you want your Bimmer upgraded along the path to M, BMW automaker offers its M Performance Parts line. The Bavarian automaker already offers these performance and stylistic add-ons for a number of models, and has now released new kits for both the 2 Series Coupe and the latest X5 crossover.
The catalog for the 2 Series includes an available lowered suspension kit, upgraded brakes, new alloys, carbon aero kit and interior trim enhancements. There's also a power kit available for the 220d model that squeezes out an extra 16 horsepower for a total of 200, and a limited-slip differential and exhaust silencer for the M235i.
Upgrades to the X5 crossover, meanwhile, also include a carbon aero kit and interior trim package. The X5 xDrive35i model also gets a power kit boosting output by 20 ponies to 326 hp and an exhaust silencer. Scope out the details in the pair of press releases below and the pair of high-resolution image galleries top and bottom.

2011 BMW 1 Series M Coupe now more expensive than when new

At the end of the day, your friendly Autoblog editors are car guys, just like you. So, while we might have more of an opportunity to test some of the most interesting vehicles on the new car scene than does your average gear head, we can still be found whiling away those long afternoon hours looking at used cars and thinking about what could be.
Just the other day, we had a vivid reminder about one of our dream cars from the very recent past, the 2011 BMW 1 Series M Coupe. If you didn't catch it, Michael Harley had a great time testing and reviewing the new Dinan S3-R version of the car, which throws an impressively engineered turbo and suspension tune on a BMW that was damn near perfect out of the box.
In the Comments section of that review, a few savvy Autoblog readers pointed out that our estimated price for a used donor car, set at $50,000, was low. Odd, we thought, as the car retailed for less than $50k ($46,135) when it was new in 2011. So we started checking around.