Where is the largest Audi dealer?

"The largest Audi dealer in the world is presently located in West London, UK. With 190000 sqaure feet they are expecting to have approxiamtly 30,000 costumers in their first 12 months. The building consists of 3 floors of showrooms, 2 floors of confrence quarters and 2 basement levels containing 32 work bays."