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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.

Will next BMW Project i car be an i6?

BMW may be steadily working its way through the single digits when it comes to the i sub-brand of plug-in vehicles for the next few years. The automaker started with the i3 and the i8, and we heard rumors about an i5 and an i7. Oh, and we've heard about a potential i4, too. None of these have been confirmed. Still, next up is the i6, according to Automobile. There aren't a ton of details, but the all-electric vehicle would be about the same size as the 3-Series line that's long been a workhorse for the German automaker. Like the other Project i vehicles, the i6 would have a lot of carbon fiber in order to reduce weight and help with range extension. The model would also likely have multiple electric motors as well as a state-of-the-art lithium-polymer battery that would provide a big single-charge range, though, again, no specifics on that number. Word got out earlier this year about a supposed i5 model that would be a plug-in hybrid with a gas-powered engine and two electric motors that combine for about 540 horsepower. Other reports said that the four-door sedan would actually fall under the i7 badge. BMW North America chief Ludwig Willisch said this past spring that the sedan in question wouldn't be seeing the light of day any time soon. BMW has already doubled US sales of its two Project i vehicles this year. Through November, Bimmer's sales of its i8 plug-in hybrid quadrupled from a year earlier to about 1,600 units, while sales of the i3 electric vehicle jumped 89 percent from a year earlier to about 9,600 vehicles.

The Homer to contest 24 Hours of LeMons

It's finally happened. A 24 Hours of LeMons team has built the definitive interpretation of The Homer from The Simpsons for competition in an upcoming race. As you may recollect, The Homer is the fictional car designed by Homer Simpson for his brother's car company. Designed with a separate compartment for screaming children and other Homer-centric goodies, the animated machine bankrupted its parent company and put Homer's brother out of a job. Now we get to watch it race other crap cans as it tackles Southern California's Buttonwillow Raceway on June 29. Scott Chamberlain, Kris Linquist, Reid Conti, Ben Reilly and Mike Yepes will helm the machine, and Jeff Herman serves as the team's creative director.
The racer is the latest incarnation of a well-abused BMW 3 Series. The team campaigned the same E30 under the "Prickstine" banner as a Chrysler Imperial tribute and "Porcubimmer," the latter being a riff on the ever-popular joke about the difference between porcupines and BMW models. Never gets old. You can check out a video of the finished Homer below, and be sure to like the team on Facebook to see updates from the race. Now, about that Canyonero...