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2014 BMW Z4 sDrive35is

The BMW Z3/Z4 roadster has never really had a widespread following because it has either been too humble and small a roadster (albeit with some fun and very low-volume M editions) or it has been - in this E89 generation - too casual an image leader with no racier aspirations. The current 480-hp Z4 GTEs don't count, since they are as stock a Z4 as today's Pamela Anderson is the same blonde actress we knew as Heidi on Home Improvement. You know, sort of like those ever-so-slightly modified Toyota Camry coupes competing in NASCAR.
The ultimate highpoint for the BMW Z roadster franchise was at the very start of its life in the mid-90s, in the James Bond film GoldenEye with Pierce Brosnan. The Stinger missiles that Q's team installed behind the Z3's headlights were never fired, and BMW never even offered this self-defense package as an option. Yet another case of the ol' bait and switch.
And in all these subsequent years of Z3s and Z4s strutting their long-hooded stuff, the little sporting Bimmer could really have used a live Stinger missile or two to spice things up. The current Z4 exists, it is pretty dang sexy, and BMW seems content to let it linger there. We just drove the new midlife version of the roadster near BMW headquarters in Munich, and it served to reinforce our feelings.

2013 Dinan S3 BMW 550i

Steve Dinan has been enhancing BMW models since 1979. But don't throw his company into the ring with the dozen or so other tuners who tweak, tinker and piggyback upgrades on the famed German marque. Dinan is a tuner, but it's also an engineering firm that writes its own software, builds its own parts and then backs everything it does with a factory-grade warranty. That sort of fastidiousness comes at a price, but most of its customers - including the powerhouse of BMW Motorsport - rely on Dinan to help them come out on top.
In stock form, BMW's 550i is a formidable four-door with a twin-turbocharged 4.4-liter V8 rated at 400 horsepower and 450 pound-feet of torque. While those figures allow it to run with quick company (0-60 in 5.0 seconds, according to the automaker), Dinan puts the sedan's kettle on full boil with its S3 package. Starting with the engine, the performance engineering firm bolts on larger turbochargers, air-to-water intercoolers, a trick strut tower brace cold air intake, a quad-pipe free flow exhaust and its own engine management software. Pump in some premium fuel, and the result is 542 horsepower and 587 pound-feet of torque. Power is sent through the stock eight-speed automatic to a limited slip rear differential (Dinan will upgrade xDrive all-wheel drive models, too).
The Dinan S3 also features and extensive suspension upgrade that includes new front camber arms and low compliance rear control arms (engineered to reduce understeer and improve turn-in). The stock dampers are retained, but new bump stops are installed along with new springs. Overall, the car rides about a half-inch lower than stock to improve roll rate. To reduce unsprung weight, forged 20-inch HRE Performance wheels are fitted at all four corners (wearing Michelin Pilot Super Sport tires - 275/35ZR20 up front and 295/35ZR20 in the rear). Lastly, the company remaps the factory Electronic Damper Control (EDC) software with its own Dinan Shockware to work in conjunction with the new enhancements.

BMW now wants to build 'ultimate machine driver'

The lines between the auto industry and Silicon Valley have been blurring for a while now. Google, for example, is hiring people from deep within the automotive world to spruce up its autonomous driving project. Apple is doing the same, and Tesla's sort of on both sides. More examples are easy to find. That's why it's no surprise, really, that there's a movement happening behind the scenes at BMW to reinvent the roundel. Speaking at the Geneva Motor Show this week, BMW board member Klaus Froehlich told Reuters that the Bavarian automaker is refocusing its sights on Silicon Valley. The goal, Froehlich said, is to have half of BMW's research and development staff to be computer programmers. Their mission: to build the AI that will maneuver upcoming self-driving BMWs. In other words, after 100 years of building what the company calls the ultimate driving machine, BMW is shifting over to the ultimate machine driver. We should've seen it coming with that autonomous driving video last year. Many automakers are working on autonomous cars these days, and this is all nothing new for BMW, but Froehlich's comments show an increased focus on cars that will drive you. "For me it is a core competence to have the most intelligent car," Froehlich said. "Our task is to preserve our business model without surrendering it to an Internet player." Some of the tasks that Froehlich sees for an expanded software team will be developing better cloud connection, so that a self-driving car can get messages from a central network. It means perhaps licensing BMW's plug-in powertrains to smaller companies that maybe can't build their own but have other strengths that BMW can access. By developing its own staff and working with partners – the same strategy automakers have used for years – BMW is trying to get ready for the autonomous future. Related Video: News Source: ReutersImage Credit: Harold Cunningham/Getty Images Green BMW Technology Emerging Technologies Autonomous Vehicles Electric Future Vehicles bmw i research and development klaus froehlich