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The 2017 Porsche 911 RSR goes mid-engine, purists be damned

Porsche unveiled its World Endurance Championship and IMSA WeatherTech Championship competitor with the 2017 911 RSR. And this 911 is different from the rest, as the 4.0-liter flat-six engine powering this beast is in front of the rear axle, not behind it. That's right, this 24 Hours of Le Mans competitor ditches the iconic rear-engine layout. Porsche isn't talking specifics on how exactly things are arranged back there. The engine is new, now based on the 991 911's block instead of the previous Mezger motor that's been used for years. The transmission design is new as well – it would have to be to accommodate the new location relative to the engine. The racecar has been engineered to meet the LM-GTE class, where it will go up against other mid-engine cars like the Ford GT and Ferrari 488 GTE. Moving the engine to the middle has given Porsche the ability to fit the 911 RSR with massive bits of aero, like the humongous rear diffuser that looks like it would be more at home on a machine of war. The only thing that can compete with the diffuser for size is the top-mounted rear wing, which shares a similar design to the one found on the 919 Hybrid. Going back to the engine, the direct-injected boxer motor, depending on the size of the restrictor, generates as much as 510 horsepower and sends all of its fury to the rear wheels. The engine is paired to a six-speed sequential gearbox, which drivers can employ through paddles on the steering wheel. The new engine doesn't have a lot of weight to push around as the 911 RSR, as required by regulations, weighs 2,740 pounds. Speaking of weight, the engine layout isn't the only change for the 911 RSR. For 2017, the car ditches its steel body for one that's made out of carbon fiber. The body attaches to the chassis via quick-release fasteners, making the vehicle easier to service as exterior elements can be removed with minimal effort. The racecar also gets a radar-based collision system – aptly named the "Collision Avoid System" – which is meant to limit the 911 RSR's encounters with faster LMP prototypes. Only time will tell if the new layout and aerodynamic components help the 911 RSR beat its competition. But there will be plenty of opportunities to see the racecar in action as Porsche plans to run the 911 RSR in 19 races during the 2017 season, the first of which will take place at the IMSA opener on January 28th at Daytona, where the racecar will make its track day debut.

Psychology can wipe out 20-25% of your EV's range

There are two primary takeaways from a recent study of electric-vehicle driving habits in Germany. One: an electric vehicle with 25 percent of its battery charge left creates the same reaction in drivers as the fuel needle on "E" in a gas-powered car. Two: familiarity breeds comfort. The study, conducted by Germany's Technische Universitat Chemnitz and funded by the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety, put some real numbers on the concept of "range anxiety." According to Green Car Congress, that anxiety truly kicks in when there's less than a quarter of the driving range left on an EV's battery and the study found that a typical car's range is "shortened" by a 20 to 25 percent "psychological safety buffer." If we take the popular Nissan Leaf as an example, the official 84-mile single-charge range is really closer to 63 miles in the head of the driver. The longer the driver spent in the EV, the shorter his mental buffer became. The study was culled from data involving just 79 drivers who tooled around Berlin in Mini E EVs for about six months, collectively putting a quarter-million miles on the electric vehicles. The good news is that the longer the driver spent using the EV, the shorter his mental buffer became, which meant he could comfortably get more miles from the car. So, to all you EV advocates out there, know that once drivers spend some time with an EV, they get more and more used to what the car can do. It's a lesson we've learned before. Just remember that to new EV drivers, the single-charge range is a lot smaller than the one old-timers see.

BMW's Mini plant closes for 4 weeks for the Brexit that didn't happen

LONDON — BMW's Mini plant in Britain is closing for four weeks starting Monday in a move planned over a half year ago to help the company deal with any disruption resulting from Brexit, which has since been delayed. The German carmaker, which builds just over 15 percent of Britain's 1.5 million cars, moved its annual summertime shutdown to April to "minimize the risk of any possible short-term parts-supply disruption in the event of a no-deal Brexit." But Britain's departure from the EU has now been pushed back from March 29 until at least April 12 or potentially much later, scuppering the timing of major contingency plans for some carmakers. Shutdowns are organized far in advance so employee holidays can be scheduled and suppliers can adjust volumes, making them hard to move. "This is what our company and our workforce have planned for over many months, and it is fixed into our business planning," said a BMW spokesman. It represents the latest headache for Britain's once roaring car sector which had been on track for record production but since 2017 has posted sharp falls in sales, output and investment. The overwhelmingly foreign-owned industry has become increasingly incredulous as a stable and attractive investment environment descends into one of its deepest political crises, risking the free and frictionless trade the sector relies on. BMW's Rolls-Royce factory in Goodwood will close for two weeks whilst Jaguar Land Rover's (JLR) three car plants and engine facility and Honda's Swindon facility will also shut for a few days this month as part of Brexit contingencies. It has been a turbulent few months for the sector after Nissan canceled plans to build a new sport utility vehicle at its English Sunderland plant and Honda said it would shutter its plant in 2021 in the biggest blow to the sector for years. Toyota provided a rare boost when it announced plans to build cars for Suzuki at its English car plant. BMW, which is also closing its central English Hams Hall engine facility and Swindon press shop and sub-assembly site for four weeks, has said it could move some engine and Mini output out of Britain if there is not an orderly Brexit. Carmakers face a number of risks if there is a disorderly Brexit, including delays to the supply of ports and finished models, new customs bureaucracy, the need to recertify models and an up to 10 percent tariff on finished vehicles.