Roush has come out with a new variant of its ground-pounding 427R. the 427R Trak Pak Mustang is designed for drivers who want to track their road cars on race weekends and such.

View post: How The World’s Best Hillclimb Racer Trains His Body to Race at 14,000 Feet Above Sea Level Click above for a high-res gallery of the Roush 437R Trak Pak Mustang. We’ve driven our ...

Even so, Roush s 427R ( Like a Teenager , AW, September 25, 2006) makes us stand up and take notice. For 2008, the new 427R Trak Pak is race-tuned icing on a muscle-car cake.