iv got porsche 928 8" on my widetrack which are et52.3 + 20mm spacers = ET32.3 and no probs at all with 215/40/16 tyres on coilovers, admitadly id like to go lower but if i have the arches rolled i can go as low as i like there will be no issues. it is pretty low already though, (about 50-60mm ish) but if i go another 20 ish i might get abit of rub untill i roll the arch lips.