A much covered topic... and with thanks so far to Abb & PMK. I'm hoping to get some 19" BBS CH reps in the next few weeks, and want to remove the arch gap in the process. However the H&R 45mm springs which would suit this perfectly are not suitable for my cab (3.0tdi Quattro), which leaves (for H&R) the 30mm springs. Abb has these same ones on his S4 and it looks like the gap is almost gone, however does anyone know of any other springs which would give a 40-45mm drop? The other option is coilovers but I can't justify the expense as I'm only lowering it to make 19" sit right and improve the ride quality with the larger rims. Anyone had experience with the 30mm H&R springs on a cab?? Has it adjusted the height as you wanted?? In addition, I also can't justify x3 the price for official BBS rims when reps will do the same job. So I'm looking for somewhere who sells reps which won't buckle at the first sign of a speed bump and that have a good quality finish. There are some on BM autosport which fit the bill, has anyone had any experience with these guys and reps?? And finally, tyres sizes. I don't want to run stretched tyres so I'm trying to find out if I'll be able to run with a drop of 30mm (possible 45mm if achievable without coilovers) with different rim widths. I would assume the following: 8j rim = 8 inch width = non-stretched tyre width of 205 8.5j rim = 8.5 inch width = non-stretched tyes width of 215 9j rim = 9 inch width = non-stretched tyres width of 230 However, at present the standard 18" S-line alloys have 235/40 tyres on. Does this mean to have non-stretched tyres a width greater than the width of the rim should be used and if so by how much? If I were to get 19" 8.5j ET45 reps, use 10mm spacers and run 30mm H&R springs and use 235/35/19 tyres would this achieve what I'm looking for? I've been trying to work this out for a few weeks now and haven't been able to find a definitive answer so any help would be greatly appreciated guys!