2012 Aston Martin V12 Vantage Roadster headed for Geneva Motor Show? According to a report from GT Spirit, the most awaited V12 Vantage Roadster will finally launch in 2012 expectedly at Geneva Motor Show March 2012.Aston Martin V12 Vantage Roadster is powered with a 6.0-liter V-12 engine mated to a six speed manual transmission produces [...]