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2015 BMW i8 offers you a fast ride to the future for $135,700* [w/video]

BMW's long-form teasing and rollout of its incredibly cool i8 has put us in a unique position to report from its world debut here in Frankfurt. Typically, an auto show debut marks just the start of the information dump about a new vehicle. The i8, however, is a car that we've already driven and reviewed, so perhaps the biggest news from the show floor is the official price of the thing, as well as getting to see it live and in person, of course.
Arriving in US showrooms in the spring of 2014, the i8 performance plug-in hybrid will carry a price tag of $135,700 (*not including $925 for destination and handling charges). That kind of cash puts the i8 near the very top of the BMW range (slotting just under the top-trim 7-Series models), and will buy a massive amount of new technology.
The four-seat i8 has the look of a true supercar, and its new-tech drivetrain will offer up the performance of a stirring sports car, at least. A TwinPower Turbo, three-cylinder, 1.5-liter engine will make 231 horsepower and 236 pound-feet of torque that's gets sent to the rear wheels, while a 96-kilowatt electric motor doles out 131 hp and 184 lb-ft of maximum torque to the fronts. Total system output of 362 hp and 420 lb-ft allows the i8 to sprint to 62 miles per hour in 4.4 seconds with all-wheels-driven handling, and it still returns an astonishing 94 miles per gallon US.

BMW M4 versus Audi RS5 | Autoblog Podcast #546

On this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Reese Counts. We debate the merits of the BMW M4 and the new Audi RS5 and our hopes for the refreshed Mercedes-AMG C63. We also discuss the state of Cadillac, the future of the Ford Fusion and the rumored Mercedes-AMG competitor to the Porsche 718 Boxster and Cayman. Autoblog Podcast #546 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown 2018 BMW M4 versus 2018 Audi RS5 Cadillac and Mercedes-AMG sport coupes The state of the luxury car industry The future of the Ford Fusion Replacement for the Mercedes-Benz SLC Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: Design/Style Podcasts Audi BMW Cadillac Ford Lexus Lincoln Mercedes-Benz Convertible Coupe Crossover SUV Luxury Performance bmw m4 mercedes-amg c63

Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.