Chrysler Marine Transmission / Reverse Gear, 2.56:1, Circa 1950 on 2040-parts.com

Awesome video of Porsche engine teardown

If you’re considering tearing down the 3.2-liter air-cooled flat-six in your 1984-1989 Porsche 911 , this stop-motion video should help motivate you. Skipping past all the stuck fasteners, broken parts and most of the unpleasant discoveries you’ll encounter when pulling any old engine apart has a way of making a full teardown seem downright manageable. But, whether you have an old 911 or not, this video is mighty entertaining and definitely worth a look.

BMW 4 Series Coupe makes UK debut at PGA Championship

We had our first look at the car that will replace the old 3-Series Coupe ahead of its debut at the 2013 Detroit Auto Show when the BMW 4 Series Coupe Concept arrived, looking like a winner even before it goes in to production. Even when you take away some of the fripperies of a concept, you’re still left with an impressive 4 series Coupe that’s longer and lower than the old 3 Series – and a lot better looking. In fact, the 4 Series looks a lot like a smaller 6 Series and is also likely to spawn a ‘Gran Coupe’ version at some point – just like the 6 Series – which could do very interesting things to sales of the regular 3 series saloon.

Audi says U.S. will get clean diesels at a premium

Audi CEO Rupert Stadler says American consumers will get more clean diesels--but they will pay a premium for them. “I think the problem is that we don't really have an honest discussion,” Stadler said in a press roundtable at the auto show here. “There is a very, very high level of investment, and nobody today knows if the return will come,” he said.