Vivienne Durham: Universities favour applicants with the best GCSE and A-level grades
Your daughter’s consistently high performance in Year 5 augurs well for academic success when she transfers to senior school in Year 7. You would obviously be wise to submit an application to both schools, if this is possible.
My personal view is that grammar schools can offer exceptional opportunities for academically talented students. The 40 minute bus journey you mention to your chosen grammar school is close enough to be a very realistic option for your daughter, if she is able to achieve a place.
Unlike most adults, teenagers tend to enjoy their commuting journeys, regarding them as social or homework time. Your daughter is also likely to make local friendships, even if she does attend the grammar school.
I would advise you to check the list of leavers’ university destinations for the past three years, at each school. If this information is not readily available on the school website, do ask the head.