I had 4 Federal Supersteel 595's on my IS200, the near side rear was worn in one area so it has been changed for the spare. The spare was a Bridgestone Potenza RE040, so now I have 3 SuperSteels and 1 Potenza on the car (worn supersteel as a spare).
I have had a look at reviews on both Tyres and none have a great score the Potenza being slighey higher. The pattern for both tyres is totally different and I am not even sure if I should continue driving around much longer like this.
The Federal supersteel 595

The Potenza RE040

Anyway my question is:
Would you...
A. Buy another Supersteel and swap for the Potenza (back to Supersteels all round).
B. Buy another Potenza (have 2 Supersteels at the front and 2 potenza's at the rear).
C. Change all four and get better tyres. (costly option)
D. Leave as it is.
E. Change the Potenza for a tyre with a smiliar pattern as the Supersteel.
F. Any other suggestions?
All tyres currently have plenty of thread left on them.
Many thanks...
Abbas
