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BMW i3s traction control tech going in all BMW, Mini cars

The BMW i3s is essentially a warmed-up version of the i3 electric car we all know and love. The performance boost isn't huge — just 14 horsepower and 15 pound-feet of torque — but it also gets a new suspension, wheels and tires as well as an improved traction control system. We found the car to benefit from all the updates when we drove it for our First Drive Review, but now BMW has offered up more details on just how the traction control system of the i3s helps make it better to drive. The company says it'll expand the technology to all future BMW and Mini models as well. The i3s's system is calibrated to help it to pull away quickly from a stop, making full use of the instantaneous torque offered by the electric motor. It also improves stability when accelerating out of corners, when using regenerative braking and, of course, when the road conditions are less than ideal. The results are palpable, and with the other improvements the i3s definitely feels stronger off the line, as we found on our drive. It's also about a half-second quicker to 60 miles per hour, at 6.8 seconds. The secret is in the response time of the stability control, which BMW claims is 50 times faster than the conventional system. This is made possible by moving the control process into the powertrain itself, rather than a remote unit. This reduces the signal path and, thus, the response time of the traction control system. BMW's Head of Chassis Development, Peter Langen, said of it, "With their high levels of torque and instantaneous responses to every movement of the accelerator, electric motors already make significantly higher demands on driving stability systems than conventional power units." While engineered to make the most of the electric motor, BMW says the shorter cycles of this traction control system show promise for internal combustion vehicles as well. As such, we'll begin to see the improved technology applied across the BMW and Mini lineups going forward. Related Video:

BMW eyes Z4 replacement before 2020

As BMW has been busy building four-door versions of two-door versions of four-door cars, less useful crossovers and front-drive minivans, you could be forgiven for thinking it had given up on its aging Z4 roadster. But that, we're pleased to report, isn't the case. According to Automotive News, BMW is hoping to release the next-generation Z4 (if that's what it ends up being called) before the close of this decade. The news outlet spoke to the company's chief engineer, Klaus Frohlich, at the 2015 Geneva Motor Show, who indicated that BMW may split costs on the new car with Toyota, as part of the partnership between the two automakers. This partnership is integral to the next-gen Z4, largely because of the declining importance of the roadster segment, Herr Frohlich indicated. "If you look at the volume... we have to realize that these segments are shrinking," Frohlich told AN. According to the publication, sales of the Z4, which hit the market in its current form back in 2009, dropped 11 percent in Europe and 13 percent in North America. The car also is less attractive to customers in China for a number of reasons. "[Chinese customers] are not interested in roadsters," Frohlich explained. That's because privacy is a high priority for drivers in China, AN said. On top of that, open-roof cars expose their customers to China's notorious air pollution, which drivers are understandably keen to avoid. Related Video:

2014 BMW 328d xDrive Sport Wagon

There's a running joke among auto writers that the perfect car would be a diesel-powered, rear-drive wagon with manual transmission and no power accessories whatsoever. It would only be available in brown and would somehow be as fun to drive as a Mazda MX-5 Miata. Makes total sense, right?
Realistically, no manufacturer is ever going to completely fulfill our wishes, no matter how much we beg, plead, kick and scream about our dream car that most of us would actually never buy. The best we can do is hope for a vehicle that mixes some aspects of this ideal journalist's car. And in today's world, that vehicle just might be the BMW 328d xDrive Sport Wagon.
No, it's not available with a manual gearbox, and power can only be sent through an xDrive all-wheel-drive system. It's also not available in brown (although both Mojave Metallic and Sparkling Bronze Metallic are acceptable stand-ins), but it ticks the two main boxes of being a diesel-powered wagon, one of only a couple such models in the United States.