With its awesome new V12 Vantage S, Aston Martin squeezes its biggest engine into its smallest car. The results are breathtaking, writes Road Test Editor, Howard Walker. The Supercar world is changing. Fast. The ultimate, neck-snapping performance cars of tomorrow will have engines boasting a multitude of joules and watts, ohms and volts. Turbos spinning at the speed of light will add massive oomph to combustion engines not with 12, 10 or eight cylinders, but probably six or even four. BMW’...