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BMW 4 Series Convertible basks in the sun

The BMW 4 Series Convertible will show its non-camouflaged face sometime later this year, but our spies recently caught this nearly naked prototype out getting some sun. As you'll recall, the droptop 4 Series replaces the 3 Series Convertible in the BMW range, and if our recent stint behind the wheel of the new 435i Coupe is anything to go on, this topless 4er should be quite a fun runabout for sun-drenched motoring.
To no one's surprise, the 4 Series Convertible shares all of its design with the 4 Series coupe, save, of course, the obvious roofectomy. Beyond that, the topless 2+2 will use the same engines and transmissions as the coupe, meaning it should arrive in the US in both 428i and 435i guises, powered by a 2.0-liter turbocharged inline-four and 3.0-liter turbocharged inline-six, respectively. Both six-speed manual and eight-speed automatic transmissions will be available.
The car spied this time around has the full M Sport visual treatment, with the revised (and better-looking) front fascia, larger 19-inch wheels, and attractive Melbourne Red paint. Interestingly, it appears this prototype has the standard xenon headlamp setup, rather than the full-LED option that's also available.

BMW i3 starts near $35,000; NA first deliveries January 2014

While in Germany at the first early pre-production drives of the hotly anticipated BMW i3, BMW people finally hinted at a price ballpark. Numbers being tossed around by pundits have actually been pretty close to what BMW is discussing internally - between $35,000 and just over $40,000. We have been assured now that the base price, should one choose to buy and not lease in the Euro zone, is just over 35,000 euro, with some big taxes included in that price. In the US, the starting price for the fully EV plug-in version should be $34,500 or right thereabouts. In addition to new pricing, we've also gotten our best-yet look at the i3, with the freshly uncovered spy shots you see here.
European deliveries begin in November of this year for the fully electric version of the rear-wheel-drive i3 with 168-horsepower and 184 pound-feet of torque. The e-motor mounted over the rear axle is supplied with energy by the 22-kWh lithium-ion battery pallet under the passenger compartment. Recharging happens in any of three ways: public or personal garage plug-in charge station (garage version not included in the price), the onboard system's Pro Eco mode that adds resistance to the drivetrain in a type of rolling brake energy recuperation, or through the normal brake energy and off-throttle coasting regeneration more common to EVs. Range on a full charge of this drivetrain is said to be upwards of 100 miles under hyper-miling conditions.
Perhaps the best bit of news is that the alternative, range-extending, two-cylinder 600cc engine supplied by BMW Motorrad for the hybrid version of the i3 - mounted in the rear together with the e-motor - will add only 2,000 euros in Europe and about $2,000 in the US. This is a range-doubling solution that could have brought a much higher price gouge, so thank you, BMW. The hybrid e-drive i3 version arrives a couple months after the full-EV launch version. Remember that, unlike the very similar system for the Chevrolet Volt, the system in the i3 supplies no mechanical torque to the driven axle and is only used as a generator (a system BMW first used last year in the 1 Series-based Active ). The US is seen as the clear number one market for the i3.

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.