Joe Castello's XM Power Shift is no longer on the air- The nightly motor sports talk show on XM 144 broadcast its final show, Friday night, December 5th. The show which covered all forms of racing had a weekly rotation of experts including the NHRA's Alan Reinhart, who discussed drag racing each Tuesday night. Drag racing legends from Don Garlits and Shirley Muldowney to current champions Tony Schumacher and Jeg Coughlin made frequent appearances on the radio program.