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

Twenty-eight improvements on the 2014 Camaro Z/28

The 2014 Chevy Camaro Z/28 doesn't arrive until spring, but the company is priming our pumps now, so we'll be ready to spend that $75,000 when the time comes. On Tuesday, the company laid out 28 reasons why the Z/28 “rules the road course.” Before we get to the reasons, Chevy let us in on the three keys during development. First, it increased grip.

Concept Car of the Week: Porsche Tapiro (1970)

By the late 1960s it was time for Porsche to create a new car that would replace its ageing entry-level model, the 912. Its sister company Volkswagen also needed a sports coupe to replace the Karmann Ghia and so the two brands joined together to develop what would become the Porsche 914. These days the 914 holds something of a ‘cool factor', generally considered as the ‘black sheep' in Porsche history.

2014 Mercedes-Benz S63 AMG revealed

Mercedes-Benz's AMG performance-car division has officially revealed its new 577-hp S63 AMG ahead of the rapid sedan's public Frankfurt motor show debut in September. Several traditional AMG styling mods distinguish the S63 from recently introduced but lesser S-class models (“S-class Stunner,” Autoweek, May 27). They include a deep new front bumper, chromed blade grille, twin-turbo V8 badges on the side and beefed-up sills.