I recently changed my 4 tyres and rather than fit 185/70x14 I chose 175x14. Although the 185/70x14 size gives the same rolling circumference, I was not sure if my rims were wide enough the take advantage of the wider tyre, I dont know if the 4cyl and 8cyl ie 165x14 and 185x14 used the same width of rim. I felt the size I chose was a fair compromise.
I had a pretty good choice in this size, budget makes and brands including Hankook, Firestone and Continental, possibly Vredestein.
With 175x14 the car does not look any different and the steering is not any heavier, my speedo was never to acurate before so in not bothered about it being out now.
Robert