Puzzling acceleration comparo of Prius and Insight

[1993CivicVX]

Apparently the 2010 Toyota Prius has a drag coefficient of .25 and the Honda Insight has one of .28. This, to my understanding, would mean the Insight would take longer accelerating to higher speeds than the Prius if they had the same power. Yet the Prius beats the Insight accelerating to 40mph, while the Insight then surpasses the Prius onto 80mph. Wouldn't the Insight only fall further behind the faster the two cars go since it has worse drag? How does it do better at high speeds??

Or perhaps it speaks more to the gearing? (They're both CVT tho).

Coefficient of Drag: .....Insight................Prius
....................................0.28.......... .........0.25
lower number = less aerodynamic drag

TEST DATA
Acceleration to mph

....................Insight................Prius

0-30............3.7 sec...............3.4 sec...... fastest (+0.3 secs)
0-40............5.4.....................5.3 ........... faster (+0.1 sec)
0-50............7.6.....................7.6 ........... same
0-60............10.4...................10.6 ......... slower (-0.2 secs)
0-70............13.8...................14.3 ......... slower (-0.5 secs)
0-80............18.1...................19.1 ......... slowest (-1.0 sec)

You'll notice how the Prius is faster accelerating when the aerodynamic drag is at a minimum and then is overcome by the Insight when aerodynamic drag is very significant. at 50mph the Insight catches up with the Prius and then progressively leaves it farther and farther behind the faster it goes.

http://motortrend.automotive.com/104...est/specs.html

more reading on the Insight
http://www.motivemag.com/pub/feature..._Insight.shtml