Volkswagen faces tough consequences over its diesels, Mercedes-Benz shuffles from SLK to SLC, and Ford is on track for Le Mans. It's the Week In Reverse, right here at Motor Authority.

This week's top story, no doubt, is Volkswagen's admission that it cheated on U.S. emissions tests, pertaining to the otherwise well-regarded two-liter TDI turbo-diesel engine that's installed in various Volkswagen products and the Audi A3. With a scandal that broke in the U.S. late last week, broadened to the world over the weekend, and led to the resignation of CEO Martin Winterkorn by midweek, it's already clear that this scandal will have some long, costly consequences for VW. And here in the U.S., the term "clean diesel" will never mean the same again.

Over at Audi, the A4 sedan remains the 'center of gravity' for the brand's U.S. lineup, as a company official recently put it, and so the introduction of a fully redesigned version is a big deal. We got a First Drive in the new 2017 Audi A4, and while our time with U.S.-spec drivetrains was limited, we found this sedan to be a solid improvement over the outgoing model in packaging and cabin appointments.

The Rezvani Beast Speedster may fit the description of a kit car, but it's something far greater, as our contributor Jeff Glucker recently found. If you're intrigued by something that takes the track-toy fundamentals of the Ariel Atom and makes it a little more relaxed for the road while also pumping up the attitude, you'll want to take a longer look.

At Mercedes-Benz, the SLC badge is coming back next year—on an updated version of what's currently known as the SLK. It's expected to move a bit upscale, with more powerful engines, and even a twin-turbo AMG variant potentially in the works.

Ford's new race car based on the upcoming GT supercar is slated to make its track debut at the 2015 Rolex 24 at Daytona, in January. It's going to be a big year for Ford Racing, as they're headed to Le Mans later in the year, fifty years after their historic 1966 win.

And if you're still having sun-drenched daydreams about the absolutely beautiful Lamborghini Huracan Spyder shown at last week's Frankfurt Motor Show, we found you the right video to feed that obsession.

Visit MotorAuthority for lots more. And have a great drive this weekend.


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