So Euan decided to try some Rain-X to see if it would make a difference, he decided to apply it to just half the windshield (aka windscreen) so that he could see the comparison.  This morning his drive through to Truro was a little wet, to say the least, but in the interest of science he managed to record the results!

Notice the complete absence of wipers!!

 His only regret is that he didn't do that in time for Grandma's recent visit as Grandma loves being a passenger!!