The concept of the Aston Martin Vantage S coupe was pretty simple - take the smallest platform your portfolio and stuff the biggest engine you have in the engine bay. It resulted in a fairly fantastic sports car that we found to be quite pleasing to the eye and a lot of fun on the racetrack. So what could Aston Martin do to make it even better? Chop the top off, of course, and create the fastest roadster in the company's history in the process.