Let's assume identical positions, components (except for the handlebars) and wind and a flat 40K TT Course:

Bike 1: 2012 P2 - 60:00
Bike 2: 2014 P2
Bike 3: 2012 P3 (old geometry)
Bike 4: 2013 P3 (new geometry)
Bike 5: 2008 Soloist Carbon with round road bars and clip on aerobars
Bike 6: 2014 P5 - UCI
Bike 7: 2014 P5 - Tri

What would be your guesses for bike 2-7 ?

For full disclosure, I ride Bike 3 + 5, rode Bike 1 ... (and use a T1 on the track, but different position and setup)