In 2010 Ford Mustang has raised the bar for modern day pony cars. The sculpted body, finely tuned suspension, higher quality interior and additional horsepower make it one of the best Stangs to ever come from the Blue Oval's stable. With a flood of aftermarket variants sure to come, we couldn't help but wonder if the new Mustang would provide an even better platform to work with, or if tuners might struggle to improve on an already excellent product. Roush, who were given inside access to the 2010 Mustang by Ford for their own product development, were first to market with their 427R Mustang that was unveiled back in March.