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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:

Weekly Recap: The divergent paths of Tesla and Fisker

There's no doubt that Tesla is downshifting while Fisker has been grinding its gears. But it wasn't always that way.
In the wake of Tesla's recent success, it's easy to forget that there were once two California electric carmakers with bright futures.

Alpina XD3 Bi-Turbo offers facelifted looks, diesel-powered 4.9-sec 0-62 sprint [w/video]

I've always thought it would be fascinating to look at the psychographic data of Alpina's customer base. While the company's high-zoot rendition of BMW 7 and 5 Series sedans makes plenty of sense, I don't quite understand the appeal of the still-expensive tunes, further down the range. Enter the European-only Alpina XD3 Bi-Turbo, which made its debut here in Geneva today. The XD3 has been around for a bit, but this year it's refreshed to coincide with the BMW X3's own nip-tuck. The result is essentially a new front and back fascia on the same, ginormous Alpina wheels that make the brand's products instantly recognizable. For anyone that covets huge diesel performance in a small SUV-shaped package, that's a good thing. The XD3 pushes a whopping 516 pound-feet of torque and 345 horsepower out of its 3.0-liter, biturbo sixer, all good for a 0-62-mile-per-hour sprint of just 4.9 seconds. Which is quick by any measure. Still, the privilege of driving the fast, high-center-of-gravity Bimmer doesn't come cheaply – Alpina would like just over 69,000 euro ($77,000 by today's rates) for each example. That kind of coin will buy a European equal performance in the form of a Porsche Macan diesel, or any number of non-SUV performance rides, too. It takes a special mind, I suppose... Related Video: