2011 Bmw Certified Pre-owned Z4 2dr Roadster Sdrive35is on 2040-cars

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The List: Best of proving grounds

Proving grounds are where automakers and enthusiasts alike go to push their vehicles to their mechanical limits. The Rubicon Trail, located in the Sierra Nevada, is the ultimate off-road test, while Germany's Nurburgring is a grueling 13 mile road and track course. Jessi and Patrick visit both iconic proving grounds in this "best of" compilation of The List. If you like what you see, stay tuned to watch the full episodes, or click here to go directly to our episode archive and pick out some of your own favorite moments of The List to revisit. The List #0004: Conquer the Rubicon Trail The List #0073: Drive the Nurburgring Have an RSS feed? Click here to add The List. Click here to subscribe to The List in iTunes. Click here to learn more about our hosts, Jessi and Patrick. BMW Jeep Off-Road Vehicles Racing Vehicles The List Videos Original Video

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.

Recharge Wrap-up: Mitsubishi Outlander PHEV Finishes AXCR, Nissan Leafs drive 528 million collective miles

The Mitsubishi Outlander PHEV has successfully completed the Asia Cross Country Rally 2014. The plug-in Mitsu finished first in the EV class, and 14th overall, clocking in at 19 hours, 17 minutes and 12 seconds. For its second year in the competition, the Outlander PHEV used a new suspension with more ground clearance to help it tackle the race's treacherous terrain. Besides the glory of taking on the challenging competition, the rally helped Mitsubishi gather valuable data for EV development. The race took place over 1,367 miles of varied terrain from Thailand to Cambodia. Read more at Hybrid Cars, or visit Mitsubishi UK's Facebook page. Nissan Leaf drivers have driven more than 528 million miles worldwide. That accounts for a reduction of 150,000 tons of carbon dioxide emissions since the EV's 2010 launch. Nissan projects that Leaf drivers will surpass a collective 1 billion electric kilometers (621 million miles) by January 2015, or perhaps even sooner if sales keep increasing. The mileage data was collected through the car's CarWings telemetry. Read more at Green Car Congress. 40 percent of luxury cars will be powered by some form of electrification by 2030, according to Audi. Whether it's battery-electric, hybrid, or plug-in hybrid, electrons will be doing their share to get the well-heeled from place to place. According to an article at The Sydney Morning Herald, PHEVs are "the most promising option." The BMW i8 is a fine example, as is the Porsche Panamera S E-Hybrid, and Audi and Mercedes-Benz have plug-in plans of their own. Lexus, not so much. Read more at The Sydney Morning Herald. PGA golfer Hunter Mahan has taken delivery of a BMW i3 he won by scoring a hole-in-one. BMW offered a free, all-electric i3 to the first player to score a hole-in-one in the 2013 BMW Championship at Conway Farms Golf Club, which Mahan did on the 17th hole. The BMW Championship raised money for Evans Scholars Foundation. BMW Hole-in-One Scholar Melyzjah Smith, who was awarded a full four-year college tuition and housing scholarship in honor of Mahan's slick shot, was on hand to meet the golfer as he received his i3. Read more in the press release below. Uber has hired President Obama's 2008 campaign manager as its senior vice president of policy and strategy. David Plouffe will help the ride-hailing app navigate government policy and relations. The Taxicab, Limousine and Paratransit Association didn't think the move was a good one.