Design Rationale: 85 MPH performance speed

I say 85 MPH performance speed because I live in an area where speed limits on the interstates is 75 MPH. I think a car needs to get to 85 MPH in a reasonably quick, responsive way in order to be safe during passing. Above 85 MPH is excessive and an endangerment on public roadways and should be reserved for the track. Sorry - I guess I'm just getting old. Will this vehicle go over 85? Shouldn't be a problem. But that is not my purpose.