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BMW tests M Lap Timer App with M4 Coupe at Brands Hatch

The 2015 BMW M4 looks to include all the necessary ingredients to offer dynamite driving experience. It's an M car after all. But in today's constantly connected world, the experience of hurtling a car around a track isn't always enough.
We want data, and while there are some solid telemetry apps available for smartphones (notably Harry's GPS LapTimer), manufacturers have been a bit slower to develop their own dedicated mobile telemetry trackers for their performance cars. With the new M4, though, BMW is taking the plunge, allowing drivers to track their lap progress through a new app, creatively called the M Lap Timer.
To show off the program, BMW has recruited touring car racer Andy Priaulx to perform a fast lap in an M4 at the UK's Brands Hatch circuit. The accompanying video doesn't do much to show off the app in action. Rather, it give us a stylized look at the metrics as Priaulx hustles BMW's hottest 4 Series coupe around the circuit.

AC Schnitzer ACS4 Sport packs 510 hp under a subdued carbon fiber bodykit

One of the interesting things about the Geneva Motor Show is the breadth of the European auto industry that it covers. Beyond just the stands from major manufacturers and boutique marques, the event also hosts the regions top tuners. Among them this year are the BMW specialists AC Schnitzer, with myriad upgrades for the M4. By the time the company is done, the coupe gets renamed the ACS4 Sport. The M4 is already a potent machine with its 431-horsepower, turbocharged inline-six, but for customers willing to spend the money, more performance is always possible. AC Schnitzer's engine upgrade takes power up to 510 hp and 476 pound-feet of torque, and buyers can also add a new exhaust with carbon-fiber-surrounded tail pipes barely protruding from the rear. The company offers two suspension kits, as well. The first lowers the BMW by 1.0-1.2 inches in front and 0.4-0.6 inches in the rear. However, for drivers who really want to scrape the ground, an adjustable racing option drops the front by 1.2-1.6 inches and the back by 1.2 inches. Of course, AC Schnitzer's buyers also want to show off their cars' added performance, and the company is ready with a host of carbon fiber pieces. Up front, there's a new front spoiler, splitter and side flicks, and the rear is available with a diffuser, roof spoiler and fixed rear wing. A wide variety of wheels finish off the sporty look, including the brand's AC1 BiColor twin-spoke design offered in forged or standard versions. Get a full look at the German tuners fairly tasteful upgrades in our gallery from the show floor, above. ?"Man, Machine & More" – The M4 by AC Schnitzer Aachen-based tuning experts open new dimensions in the field of Motorsport power Man, machine & more - The tuning experts at AC Schnitzer have given the BMW M4 with Motorsport power a further kick of energy. Once again, the Aachen-based tuning specialists have shown that there's no upper limit to power and sporting performance. To build up the muscle power of the BMW M4, AC Schnitzer has provided a performance upgrade containing of an additional control unit which increases the performance from 431 to 510 hp, and from 550 to 645 Nm. Scope of delivery of every AC Schnitzer performance upgrade includes always a two years guarantee which can be upgraded up to three years. After a visit to the Aachen workshops, the powerful energy combustion developed with the AC Schnitzer "Efficient Performance" know-how is also revealed in the exhaust of the M4.

Researchers halfway to cutting carbon fiber costs by 90%

Carbon fiber has been utilized for decades to build racecars, as a means to cut weight while maintaining strength. But until recently, the space-age material has been largely absent from the street on anything but supercars because of the expense to use it. Recently, BMW signaled a major shift in that trend when it starting using carbon fiber reinforced plastic panels on the i3 and i8. This relatively small scale start might be just the beginning; the German company believes that a breakthrough to inexpensively manufacture the lightweight stuff is just on the horizon.
MAI Carbon Cluster Management GmbH counts BMW, Audi, Airbus, the German government and many other organizations as supporters, and it's researching how to make carbon fiber cheaper to produce, according to Automotive News Europe. The company thinks it can reduce costs by 90 percent in the near future. "We've certainly reached a halfway point on our cost-cutting target for suitable carbon-fiber parts," said project head Klaus Drechsler to Automotive News Europe.
Unfortunately, it isn't entirely clear just what MAI Carbon is doing to make such a huge leap possible. However, a recent post on the company's website talks about a new form a carbon fiber using a thermoplastic matrix that could be cured in less than three minutes. That's compared to about 90 minutes in the traditional process with an autoclave.