1989 Bmw 635csi Base Coupe 2-door 3.5l on 2040-cars

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2016 BMW X4 M40i Quick Spin

There's only so much you can do to disguise the SUV-ness of a crossover. The physics are simply against it. Essentially a jacked-up wagon, the X4 is heavier and has a higher center of gravity than a 3 Series longroof. No matter how many badges or what sort of fancy suspension you throw at it, you can't defy the essential laws that govern the mechanics of the universe. This isn't to say that BMW is standing in the surf, ordering the waves to roll backward. The X4 is a valiant, if misguided effort, in injecting some sportiness into a very niche vehicle. The X6 M, a "full" M Division offering, does a decent job at this: it's quick like a rocket-assisted hippopotamus, and uses some black magic to stay planted. The X4 M40i, a less-full-blown M Performance model, is less dramatic, and less compelling. Here's the operating theory: this crossover won't sell on its dynamic charms, however superior to its X4 xDrive28i and xDrive35i siblings. It'll sell because it's the top of the X4 heap, the most expensive of the three ($58,795!), and with the most "M" badges. Anyone looking for utility and strong handling dynamics should examine a 3 Series xDrive Sports Wagon with the M Sport Package and the $700 Adaptive M Suspension, pocket the $10k, and marvel at the size and shape of the cargo area. Driving Notes: This is the same engine as seen in the brand new M2, making 355 horsepower and 343 pound-feet of torque in this application. That's 10 hp down from the M2. There's lots of torque, and with an intentional stab of the go-pedal, this X4 will scoot. The eight-speed auto is great heading through the ratio range – its shifts are swift and sharp. The paddles will hold gears to redline in manual mode, but would you really want to? We ignored them. The adaptive dampers have their work cut out for them. This is a 4,235-pound vehicle – a full 340 pounds heavier than a diesel, all-wheel-drive, 3 Series Sports Wagon, and 7.6 inches taller – and this is where physics comes into play. Slalom-like quick corners produce an uncomfortable jacking effect as the outer wheels unload and transfer weight to the other side. It handles well, for a hippo. Since hustling the X4 M40i is possible but not all that rewarding, know that it's very pleasant in Comfort mode. The extra oomph is realized as a thick, broad, rich torque band, and that's never a bad thing around town. It's nicely dampened in Comfort, without much wallow.

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.

Can the government mechanically force you to wear your seatbelt? [w/poll]

The National Highway Traffic Administration is considering the use of ignition interlocks in vehicles that would require the seatbelts of occupied seats to be fastened in order to drive the car, Automotive News reports, four decades after Congress moved to prevent manufacturers from installing them in cars sold in the US market. Following a transportation bill passed last year that lift some of the restrictions on seatbelt interlocks, automakers such as BMW are considering the benefits of using them in future cars. Now, before you go crying about your lost freedom, keep reading.
BMW said in an October 2012 petition that the use of seatbelt interlocks would allow the company to make lighter and more spacious vehicles, if the devices could be used in lieu of unbelted crash tests. The crash test has required the addition of bulky safety features, such as knee bolsters, that aren't as necessary when occupants are buckled up, especially when considering the dizzyng list of safety features that come standard on today's cars. Europe, which has a higher rate of seatbelt use than in the US, doesn't perform unbelted crash tests on cars sold there.