Any Audi mechanics in Vancouver who are open Saturdays?
 

There are a few A4s for sale around here which look like they might be worth buying, but I don't want to buy without having a qualified mechanic check the car over. Trouble is, I cannot find a single German car mechanic who is open later than 5:30pm or on a Saturday, and the sellers all work normal hours.

Does anybody know of a good Audi mechanic in Vancouver with actual useful open hours?