18" 5 spokes

Correct. And most likely those people who have these type wheels only care about the Koolness facter. That is until they actually leave the parking lot.

 

When I got my wagon it had biased ply 75 series rubber on it and it handled like crap, on the freeway keeping it in its own lane was to say the least a challenge. I also discovered a bent leaf spring bushing that was kicking the rear axle off about 1" causing the car to drive down the road "cocked" to one side. Changed out the rear leafs from a 70's pickup and putting on modular rims with 60 series rubber then lowering it about 3" with my original static drop was like driving an entirely different car. With my 19" wheels 40 series rubber 255 patch and fully adjustable suspension it handles well for its impressive size and weight. I have to admit I went with this wheel and tire combo strickly for the "look" I realize it's pretty impractical as these combos go, but she is far from a daily driver. That's my extra two cents worth on this subject.

 

Don't confuse unsprung weight with rotating mass. Higher rotating mass will affect both braking and acceleration.

 

I stand corrected

 

...but lets not confuse 'rotating mass' with overall tire height...
...a 235 40 18 is smaller(26") than a 235 75 15(28)...and generally on a lighter rim than the original steelie

 

FANTAM58 , I like your style with plenty of options 8teens give you lots tyre choices at a reasonable price I have found