I actually have the cycle world 2006 july magazine infront of me.

When I went to Boarders to buy it,there was 3 other magazines that did a 600 shoot out (im sure its the same testors)

The 675 was not considered the fastest.


0-60 3.2 sec
1/4 10.76 @129.31
HP 106.99 @12500 rpm
tq 47.49 ft lbs
top speed 155 mph


ZX6R
0-60 3.0
1/4 10.58 @132.36
hp 109.43 bhp @ 13210 rpm
tq 46.46 ft lbs
top speed 160

Heres the ups they said on the ZX6R that I like.
Killer torque/great top end power
drag racers delight

The 675 won the best "all around bike"
The 636 came in second (I dont see 4th place)
And almost won in 05 but it had "stability issues on the track.No symptoms this time though"