Replace pack battery in the floor is the best mean to charge quickly your electric car. The station prepare the pack and works for you, when you vheel. All is explained in AG2050 MOBiLiTY iNTEGRAL CONCEPT. Find it in GOOGLE.
Differents systems exits, but under the car it's more difficult, so directly we choose on the side of the car. This is the difference with BETTER PLACE SYSTEM, and its very important for the cost. Prooved.