Sure:
http://www.cervelo.com/en/bikes/p-series/p5.html
Scroll down to the bottom and look at the difference between the P5 six and the P5-3. The 3 has UCI legal fork and a lower seat tube angle (seat further back).
Triathlon bikes allow you to run off the bike better by having optimum geometry for riding in the aerobars, as well as the steeper seat angle that spares the hamstrings for the run.