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Tom Kristensen walks through a perfect lap of Le Mans in Forza 5

One of the best ways of learning a new track, aside from driving it, is to hear someone that's intimately familiar with it give you a good walkthrough. That's just what you'll get here, as the winningest driver in 24 Hours of Le Mans history, Tom Kristensen, walks you through the Circuit de la Sarthe's high-speed, 8.5-mile strip of pavement.
Kristensen is dubbed over scenes of drivers from a Forza Motorsport 5 contest lapping the track at the wheel of an Audi R18 E-Tron Quattro, adding a bit of visual sense to the Danish drivers description of the track.
With the 2014 24 Hours of Le Mans kicking off this weekend, this is just the sort of video you'll want to watch to get you in the mood. Take a look below, and then let us know what you think in Comments.

2016 Audi A3 Sportback headed to US under diesel power [w/video]

Every get the feeling that automakers aren't really listening to what it is that you want in an automobile? Well, Audi is. Following what it calls "an outpouring of enthusiasts' support," the German automaker has announced that it is bringing the new, 2016 A3 Sportback to the US under diesel power, in the summer of 2015.
Unveiled today at the New York Auto Show, the new A3 TDI Sportback joins an expanding range of A3 models available Stateside. Whereas the Sportback hatch was until now only slated to be offered in E-Tron hybrid form, and the TDI only as a sedan, this model combines the bodystyle of the former with the power of the latter. The new TDI slots into the family alongside the gasoline-powered A3 and S3 sedans and A3 Cabriolet as well.
Power comes from a 2.0-liter turbodiesel four with 150 horsepower and mated to a six-speed S tronic transmission. Because it's still a year away from launch, Audi tells us it hasn't determined figures for performance, fuel economy or carbon emissions numbers, but when it joins the company's considerable diesel offerings (which already include the A6, A7, A8, Q5 and Q7) as part of the new A3 rollout over the course of the next 18 months, you can bet it'll provide that combination of low-end grunt and long-range capability that diesel enthusiasts crave. In the meantime you can scope out the details and b-roll footage below for a closer look.

Are future vehicular hacks inevitable?

Before the hack of the Uconnect system in a Jeep Cherokee resulted in a 1.4-million vehicle recall, the potential software vulnerabilities in vehicles were already a hot topic with Congressional inquiries and even proposed legislation in the US. As cars' interconnected systems gain the ability to go online, they become open to a host of new threats. Automakers are trying to stop this, but it might be too late to put the genie back into the bottle. Throughout 2015, the issue of software security in vehicles has become increasingly vital. For example, the recent Jeep case wasn't even the biggest hack this year. In February, a major flaw was discovered in the BMW Connected Drive service that allowed researchers to remotely lock and unlock the doors and potentially affected 2.2 million cars. The fix was an over-the-air patch for the problem. Automakers are actively working to fix the issues. Mercedes-Benz, BMW, and Audi reportedly are using encrypted connections and firewalls in their vehicles to prevent hacking. "Absolute, 100-percent safety isn't possible," Daimler spokesperson Benjamin Oberkersch said to Automotive News Europe. "But we develop our systems, tested by internal and external experts, so they're up to date." These vulnerabilities seem to be popping up more often. A successful hack took $14 in parts from Radio Shack in one case. There was also a 60 Minutes report earlier in the year about DARPA's ability to hack into OnStar to take control of a Chevrolet Impala. Experts aren't so sure companies can contend with hackers' advancement. "The difficulty for the carmakers at the moment is the question whether they can keep pace with advances in technology, and especially hacking technology," Rainer Scholz, executive director for telematics consultant EY, said to Automotive News Europe. "We seriously doubt they can." At this point, vehicle hacks are coming more from researchers looking for holes than from those with malicious intent. Still, the vulnerabilities are definitely there. It's up to automakers to keep patching the problems before they become dangerous to drivers. Related Video: News Source: Automotive News Europe - sub. req.Image Credit: Bill O'Leary / The Washington Post via Getty Images Audi BMW Jeep Mercedes-Benz Safety Technology Emerging Technologies hacking cyber security