I agree that if wider tires are the main goal for grip not efficiency the 19x9.5 +35 on 265/35 19 tires is probably the best and they would fit both in front and back. This would have them 22mm closer to the fender and only 10mm closer to the suspension which would clear since that is less than 1/2 in. That would also keep the total wheel diameter closes to stock at only 1mm deviation (smaller). 275/35 19 tires on that same rim would be cutting it too close in the front with 15mm closer to the suspension which is the entire clearance. Now I know Sasha and others have said that for handling, a square setup is the way to go but can someone explain again from a technical standpoint why that is? I ask because going as wide in the front as in the rear also screws up the scrub radius. The setup described above would cause a positive scrub radius of about 5 mm. This may negatively affect the car's handling. So staying with stock width in the front may be the safer but the rears would not have to since they don't turn hence no scrub radius issue. Another question I had is even assuming a square setup, it it bad to have the rear track wider? The rear wheels have a 10mm grater fender clearance than the front so going with 19x9.5 +35 front and 9x9.5 +25 rear would make a more even flush look between front and back. Is there an issue with wider track in rear from a handling point of view?