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

The big prize awaits on the Autoweek America Adventure

It is the last morning of the Autoweek America Adventure, as I write this. Our traveling circus heads toward the big top in an hour or so, and we should be in Las Vegas before noon. There is anticipation in the air, unlike other rallies I've attended, as this one has a significant main prize: a 2011 Mopar Charger will be given to one lucky contestant on the stage at the Specialty Equipment Market Association convention.

Bench Racing: New crop of supercars

It's been a while since we've hypothetically raced a handful of cars around the office; long enough that an entirely new crop of supercars has arrived for us to chart, graph and dissect. Today we're zeroing in on the $1-$3 million price tag range, which fits the Ferrari LaFerrari, McLaren P1, Pagani Huayra and the Bugatti Veyron Super Sport. The first three fit neatly, pricewise, at about $1.3 million.

Mazda's rotary engine stalled, not forgotten

Development of the next-generation rotary engine from Mazda Motor Corp., first unveiled three years ago, is making slow progress despite missing emissions targets. A top Mazda powertrain executive said today that the 1.6-liter rotary engine, called the 16X, is about 30 percent more fuel-efficient than the current rotary engine used in the RX-8 sporty car. In fact, the 16X so far performs slightly better than Mazda's standard two-liter gasoline engine, said Mitsuo Hitomi, general manager of the Japanese carmaker's powertrain division.