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2015 BMW M3 Sedan

BMW's all-new M3 Sedan is dynamically nearly identical to its two-door M4 Coupe sibling: a stopwatch reveals that both are sub-four-second cars to 60 miles per hour, a racetrack proves that the mechanical twins are equally as adept on a road course and a full afternoon of driving on public roads demonstrates that each possesses talented everyday adaptability.
Yet after driving both BMW models back-to-back over two full days in Portugal, it's clear there are a few noticeable differences, both objective and subjective, that don't require instrument testing to reveal. All it takes is a few hours behind the wheel of both cars to conclude that one is slightly more agile, and the other a bit more twitchy. One has better outward visibility, while its counterpart is unquestionably more convenient.
It is the little things - subtleties attained through seat-of-the-pants observations - that eventually allow me to choose a favorite.

Mini Cooper SE Convertible wheels made entirely from recycled aluminum

Mini has revealed an interesting fact about its limited-run Mini Cooper SE Convertible: It's the first production car with wheels made from 100% recycled aluminum. Despite sharing the same look as wheels available on the regular SE hatch, they're actually much more environmentally friendly. The wheels were developed with Swiss wheel manufacturer Ronal. The company sells aftermarket wheels under the Ronal and Speedline brands, and it supplies OEMs. And it's no stranger to more environmentally-friendly wheel production. It supplies wheels for the Audi E-Tron GT that are made using a smelting process that produces oxygen rather than carbon dioxide, and it now has a line of claimed carbon-neutral aftermarket wheels. But back to the Mini's wheels. Using all recycled aluminum has the obvious benefit of not requiring new aluminum to be manufactured. But the benefits are greater than just the raw material use. Mini points out that a major improvement in carbon emissions comes from being able to skip the electrolysis process for new aluminum manufacturing. Pure aluminum is extracted from aluminum oxide (which is in turn taken from the mineral bauxite). To do this large amounts of electricity are passed through molten solutions of aluminum oxide and cryolite (which takes energy to heat) across graphite cathodes and annodes. Not only does this use a lot of electricity that has its own carbon costs, the oxygen that separates from the aluminum bonds to the graphite annodes, yielding more carbon dioxide (which is why the production of those Audi wheels is also interesting). In total, Mini says the recycled wheel production reduces carbon emissions by 75%. More specifically, it estimates about 0.16 kilograms (0.35 pounds) per kilogram (2.2 pounds) of aluminum used. Mini also stresses that this process still maintains all the strength of conventional wheels, just in a greener way. And of course, the wheels themselves are recyclable again. Mini, and BMW more broadly, are looking at ways to upscale the process and to source suitable recyclable products, likely other old wheels from cars no longer on the road. Though neither company said anything about when we'll see fully recycled wheels more widely available. Related Video: MINI Electric Pacesetter inside and out

Daily Driver: 2016 BMW X1

Daily Driver videos are micro-reviews of vehicles in the Autoblog press fleet, reviewed by the staffers that drive them every day. Today's Daily Driver features the 2016 BMW X1, reviewed by Alex Kierstein. You can watch the video above or read a transcript below. And don't forget to watch more Autoblog videos at /videos. Show full video transcript text [00:00:00 ]Hey, everybody. I'm Senior Editor Alex Kierstein and today we're driving the 2016 BMW X1. It's replacing the old X1 and the old X1 was based on BMW's traditional rear-wheel drive platform. That meant the engine was positioned longitudinally, that's north/south in the engine bay. In this application, we've got a transversely mounted turbo charged inline four, making 228 horsepower. [00:00:30] It displaces 2.0 liters and it's part of BMW's new modular engine family. It's a nice engine. It's smooth. It sounds good and it's got a lot of power. This is a little lighter than the previous car. This one weighs 3,660 pounds versus the old X1's 3800 and some change. It's a little bit lighter. The dimensions aren't that much different. If you're wondering why it got smaller, that's because it's using a platform [00:01:00] shared with a lot of BMW's Mini products. This is really the fruition of BMW's investment in the Mini brand because now they're able to use those platforms in the engines they developed for those models in BMWs. This X1 has an 8-speed automatic transmission and it's really a pretty good trans. It kicks down quickly if you call for it to give you some power and for the most part it's smooth and kind of out of your way. [00:01:30] Where Minis are sort of raucous when you really whomp in it, this is a little more restrained. It still delivers power like many of the current turbocharged Minis out there, but there's more refinement here. I really like the external styling on this car. It's wearing this really lovely shade of dark blue and BMW's current styling language lends itself really well to this shape [00:02:00]. It looks really tidy and it's not really that complex or interesting of a shape. It's very much the traditional two-box CUV kind of exterior look and profile, but the detailing is nice. It looks sharp. It looks like a premium product and it looks like a more expensive product than a similar Mini would. BMW used to pride themselves on having simple uncluttered interfaces and even the sort of trimmed down iDrive that's in this unit [00:02:30]. Works pretty well.