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BMW swaps 30i and 40i models into 2017 2, 3, and 4 Series

BMW will continue its staggered rollout of new engines to many (but not all) of its products in 2017. The new modular engine architecture is the basis for three-, four-, and six-cylinder engines, some of which are already stuck in new Minis and a handful of BMWs. With those new engines come new (or in some cases resurrected) badges meant to connote the added power. They have the added benefit of further separating the last two numbers of the models from the actual displacement of the engines, which is always fun. BMW calls its latest 2.0-liter four-cylinder engine B48, and the new single-turbo six is the B58. The B48 cars get 30i suffixes and the B58s say 40i on the back. And if you really want to get down into code numerology: the B48 replaces the N20 four and the B58 supersedes the N55. Here's where they're headed next year: 2 Series: 230i and M240i For the small Bimmer, the 228i and M235i names are replaced by 230i and M240i models. In these applications, the four-cylinder makes 248 horsepower and 258 lb-ft of torque and the M-ish six makes 335 hp and 369 lb-ft of torque. The 2 gets other updates for 2017 as well. 3 Series: 330i sedan/wagon/Gran Turismo and 340i Gran Turismo For 2016, BMW put the 335-hp B58 six in the 3 Series sedan only. That engine spreads to the 340i Gran Turismo for 2017, and the N20 in the 328i is replaced by the B48 for 330i models in all body styles. There's still no six-cylinder wagon, and the 320i sedan keeps its N20 engine. Diesel sedans and wagons keep both the 328d name and the 2.0-liter four they had before. Trivia: The 330i name is being recycled – it was used on the E90 most recently. 4 Series: 430i and 440i Every 4 Series – including coupe, Gran Coupe, and convertible models – gets a new engine for 2017. Woo! And both engines will again be available with or without xDrive all-wheel drive. Woo. And no, that's not an official BMW photo above. The rest? BMW hasn't shared information on its 2017 crossover lineup, but we expect the X1, X3, X4, X5, and X6 will get new engines where applicable. And then there are the 30i and 40i models that already existed and won't be getting these new engines. The 330e iPerformance plug-in hybrid sedan already has the B48 four-cylinder. And the 540i, 640i, and 740i continue with a version of BMW's last-gen six. Got that all straight? Yeah, neither do we. And expect updates once the details on the 2017 crossovers are shared.

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:

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: