User blog comment:Khyber the Huntsman/XLR8 and Fasttrack/@comment-8505655-20130427150300

Considering a race, I would assume that pure speed is the major factor in play. Ergo, XLR8 is probably faster. It makes sense in that he is more aerodynamic and his features are much more in line with what you would expect of a creature built for speed. Besides, considering how the creators usually like the aliens to be roughly equal in power, the fact that Fasttrack is stronger is a good balancing factor.