Tesla Paris Ouest France Showroom and Service Center

While in Paris I discovered two Tesla locations, one easy to get to and one difficult.  I went to the easy one first in Paris Ouest.  I did a series of subway and outer-region train rides and a long walk to get there.  Turns out it's a service center only now, they moved the showroom two weeks ago to the other location that's about 30km away to the west.  The staff were very helpful, pulling out a map and showing me what public transport I'd have to take to get there.