Clarkson takes out the Rouche Mustang and the Shelby Mustang out on a test drive. The Rouche Mustang adds a supercharger to the existing 4.6 liter engine that takes horsepower up from 300 to 415. The Shelby Mustang adds a bigger supercharger than Rouche’s giving you 475 horsepower. Even then, the Rouche Mustang seems to impress Clarkson more than the Shelby. Of course, Clarkson then goes on to race the Rouche Mustang against the British Lotus.
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