2015 BMW M4 Track-Tested With M Laptimer App

BMW announced its M Laptimer iPhone app a few months back, but now we get to see it in action. In a video released by BMW, British racing driver Andy Priaulx rockets the new 2015 BMW M4 around Brands Hatch, with the M Laptimer app logging every bit of performance data along the way.

Using data from GPS and the onboard computer in the 2015 BMW M4, the BMW M Laptimer app records all sorts of performance information in real time. As Priaulx slides through corners and hurtles forward on the straights, the app keeps track of throttle, brake, and steering inputs as well as g-forces and lap times. Users can then refer back to the data and see where on the track map they struggled and where they excelled, in addition to figures like top speed.

The 2015 BMW M4 is indeed quite the car to tackle the track, and it’s clear that Priaulx enjoys the thrill. Associate editor Greg Migliore rode along with Priaulx in a prototype of the M4 last September, and he found the performance coupe “remarkably agile, eager, and responsive. It’s direct and quick, which is the definition of an M car.”

Powering the 2015 BMW M4 is a turbocharged straight-six engine, capable of a substantial 425 horsepower and 406 lb-ft of torque. Despite dropping the V-8 from the previous M3 coupe, power increase 11 hp and torque jumps 111 lb-ft. The new BMW M4’s spritely 3300-lb curb weight helps it sprint to 60 mph in 3.9 seconds, which M loyalists can enjoy using the standard six-speed manual gearbox.

Check out the video below for the full track footage. The BMW M Laptimer iPhone app is currently available as a free download, and the 2015 BMW M4 is expected to hit showrooms in early summer of this year. Pricing information for the car is still under wraps, so be sure to stay tuned for further information.

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