How long have you been riding on the street?

If you are a new rider, I would not suggest a 1 liter bike. Get an affordable starter bike first instead.

If you have been riding for a LONG time on the street and are already used to 1 liters, why are you asking this question? Get a 600 or 750, and you will be just as fast. How often do you need to go faster than 150mph on the street?