OMG, if the vehicles were going 44mph in the following image, they'd end up playing skittles.
JohnM
You are just looking for a chance to mock. Obviously there are times where you have to go slower. The odd thing is the fact that JFK was an easier target coming down Main Street where the motorcade had to go slower, but in DP the motorcade could have accelerated but that is where he got shot. Go figure.
Hint: It was due to triangulation of fire, thinner crowds and two very unnecessary turns.