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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.

2015 BMW M3 Sedan

BMW's all-new M3 Sedan is dynamically nearly identical to its two-door M4 Coupe sibling: a stopwatch reveals that both are sub-four-second cars to 60 miles per hour, a racetrack proves that the mechanical twins are equally as adept on a road course and a full afternoon of driving on public roads demonstrates that each possesses talented everyday adaptability.
Yet after driving both BMW models back-to-back over two full days in Portugal, it's clear there are a few noticeable differences, both objective and subjective, that don't require instrument testing to reveal. All it takes is a few hours behind the wheel of both cars to conclude that one is slightly more agile, and the other a bit more twitchy. One has better outward visibility, while its counterpart is unquestionably more convenient.
It is the little things - subtleties attained through seat-of-the-pants observations - that eventually allow me to choose a favorite.

2015 BMW Alpina B6 xDrive Gran Coupe

Alpina has been lovingly modifying BMWs for half a century, but as we learned during a tour of the company's HQ in Buchloe, Germany, Alpina has been in the wine distribution business for nearly as long. The company has an estimated million bottles on reserve in two warehouses and a beautiful wine cellar/tasting room on property in western Bavaria, just yards from where its 1,500 hand-crafted automobiles per year are produced.
What does that have to do with the new B6 Gran Coupe? Well, it may help make sense of the overall character of Alpina's automobiles, especially vis-à-vis the similarly priced, similarly powerful M Cars that BMW sells in far greater numbers. Alpinas are built by wine connoisseurs for wine connoisseurs, or wine connoisseur types; they are not rip-snortin' racecars for the road - that's M's domain. Alpinas are esoteric, rich in character and nuanced. But make no mistake: they are very, very fast.
Our brief first drive of the B6 Gran Coupe - the only 6 Series-based Alpina we'll get in the US for 2015 - took place on German autobahns and Austrian alpine roads, where the car is more at home than anywhere in the world, both literally and figuratively. With 540 horsepower and 540 pound-feet of torque on tap from its twin-turbocharged 4.4-liter V8 and xDrive all-wheel drive, the B6 is said to be able to hit 60 miles per hour in 3.7 seconds on its way to a top speed of 198 mph, a massive 43 mph faster than the M6, which is electronically limited to 155 mph. Yet even at insane speeds - we saw an indicated 190 mph on one particularly lonely stretch of Autobahn - the B6 feels more luxurious than sporty, taking the countenance of a low-slung Bentley Continental GT or an Aston Martin Rapide S, not a knife-edged supercar. It doesn't feel scintillating like a Porsche 911 GT2; rather it feels rock steady, like the 4,780-pound luxury sedan it is.