This reminds me of the day I test drove and bought my current Europa. The brakes were quite weak and the front tires seemed to rub on the inner fender wells. I mentioned this to the owner as we slowly drove down the street and he said he would change the wheel cylinders as they were leaking but he couldn't do anything about the tires rubbing as 'they all did that". When we got back to his garage I did a quick check and, sure enough, the 185's were on the front and the 175's were on the back. I pointed this out to him and he said they came that way from the factory. After some discussion he finally admitted he really didn't know much about these funny little British cars as he was more comfortable with Maserati's. When he delivered the car to me the 185's were still on the front.
Larry