Congrats on becoming a Dad Jamie.
I think the 70km/hr thing just blurs their vision and hypnotises them to sleep.
The phenomenon is consistent with both my cars (3" RMS exhaust vs a close to silent stock system)

PS - There must be something in the water .... 3 out of 4 houses along our street have babies.

Thanks man!

I know whats up with that, what have you got, boy or girl? If there are any boys on our street then they will be laughing with all these chicks around in a about 15 years.

__________________
betty banger