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Chevrolet touts Corvette 427 convertible with race driver Tommy Milner

The 2013 Chevrolet Corvette 427 convertible doesn't need any hype--the 505-hp V8, a 0-to-60-mph time of 3.8 seconds and a top speed in excess of 190 mph make a strong statement. Nonetheless, Chevrolet has enlisted the help of Corvette Racing driver Tommy Milner in a trio of 90-second videos to tout the 427 convertible. In our favorite, Milner talks about the car's aerodynamics, including the optional carbon-fiber splitter, that help keep the car glued to the ground for better control.

Mercedes-Benz prototypes spotted

Modern technology makes it harder for automakers to hide their upcoming products from prying eyes. Take, for example, these images sent to us from Autoweek subscriber Jonathan Peters while he was in Utah. Peters speculates that what he saw was a gathering of a varied Mercedes-Benz cars being tested, along with cars from other carmakers for comparisons.

Toyota GT86 & Subaru BRZ getting Cosworth Performance upgrades (video)

Cosworth promise power upgrades for the FA 20 engine Ever since the Toyota GT86 and Subaru BRZ arrived as ‘affordable’ sports cars with a focus on the dynamics rather than outright power, there’s been endless claims and rumours that more power is on the way. As far back as 2011, Subaru in the US confirmed that a turbo version of the BRZ’s 2.0 litre FA20 Boxer engine was under development although, to be fair, they didn’t say it was actually heading for the BRZ. And just last year, Subaru teased what we thought could be a more powerful BRZ STI, but that turned out to be a BRZ tS with go faster bits but no more actual power.