Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Mercedes-Benz SLS AMG GT Final Edition stars at the Tokyo Motor Show 2013

It's a sad day, but the reveal of the Mercedes-Benz SLS AMG GT Final Edition at Tokyo – and LA – really does represent the end of the line for Mercedes' gullwing supercar. All good things come to an end. Even if we might have hoped for a slightly more tasteful finish in this particular instance.

Gemballa Tornado 750 GTS – may the force be with you

The extreme, Porsche Cayenne based, Gemballa Tornado 750 GTS Gemballa has produced some pretty extreme versions of Porsche cars over the years. And this latest version of the Gemballa Tornado – the Tornado 750 GTS – is up there with the most extreme. It not only looks like something from a sci-fi movie, it performs like one.

Porsche race cars gather at Quail Lodge: Video

In contrast to the Rennsport Reunion's raucous goings on at Mazda Raceway Laguna Seca, the Race Car Classic at the Quail Lodge took a more serene approach in presenting the first few decades of Porsche racing. It was almost too serene, as the field of roughly 200 cars draped in loose silk car covers that greeted the crowd gave the impression of burying Porsches, not praising them. But things perked up with a group unveiling that revealed an outstanding collection of rare and unique racers, including many from the Porsche Museum and the Collier collection.