The 235 does not look that impressive TBH
Depends how low you are going with the car too, i lowered mine and with the 275's had to roll the guards, used heat and was careful and the paint still split Ah well!
235,245,255,265,275 should all fit..... You could stretch 225 but if you want any traction i wouldn't bother.... On that note, Kurtis34 has some cheapies for sale and he is on the Central Coast so you may be able to buy and try and if you don't like it skid them to death and try another size