This is a very big problem after i lowered the car, becuase i can't get the car up to the normal ramp....... or not enough room to put the optical guages on the tyres, only way to do is get the laser aliment, but only few place i can go in london...
Alignment only take 5 mins to do,normal cost is around 25-40 pounds depend what machine u are using.
if u want to adjust the Caster and Camber aswell, only laser Guages can do it and cost around 80 to 120, will take at least couple hours to get it correct.
I end up bought the Dunple Optical Alignment Guages from "Demon Theif" and do it myself, save the time and money for long term.