Mr. Panhandle,
I am a long time drag and road racer (40 + years). I once had an Anglia Gas Coupe which had 3” wide front rims and the appropriate (very narrow) rubber. No one would attempt any high speed turns with this set-up except in a dire emergency !
But perhaps of more relevance is my experience with my own Beck Spyder. When purchased from Adriana Lima and her husband, the car had 200 miles on the clock, and needed to have both front and rear suspension “tuned” and aligned... which I did.
After some 2000 mile I was disappointed at “tuck” (understeer characteristics). Since the Mangels wheels could not be balanced (massive runout), I got rid of them, and only then discovered that the front rims fitted with 185/65/15” rubber were 4 ½ inches wide…inadequate…in every way, and that explained why the tires in the front literally peeled off the rims in entry to sharp corners, irrespective of normal (1.4-1.7 bar) tire pressures.
If you don’t go fast…it really does not matter…but if you try to go fast with the wrong set-up... there is a guard-rail out there waiting to get to know you better 
ReV