Drove my Z11 home after purchase (135 miles) with funky bias ply tires on it - what an experience. First thing i did was put BFG TA's on it - the bias ply had rubbed the actuator shields for the hidden headlights on turning, so I dropped to a 205 series 15" tire. Gave me the look I wanted as far as stance and clearance, even emulates the flat sidewall of the Wide Treads to an extent. Boy, how the ride improved.
I ran Goodyear Polyglas on my X77 until I took it off the road in the 80's - even H60-15's on the rear (F70's front) with stock YH rally wheels. About 11" of tread, actually cleared the wheelhouses. You can't see them very well in my avatar pic, but these are the tires on it when I took the picture.
Point being - if you're driving, run TA's or an equivalent manufacturer's radial. Showing, local driving - Wide Treads. A good friend of mine did just that, 2 sets on rally wheels, changed them out depending on what he was doing with the car. Made sense -
Regards,
Steve