The Rally on the Roof Car Show will take place Saturday, October 11 in downtown Houston at the Toyota Tundra Parking Garage. There is room for 200 cars on the open-air roof of the parking garage, which is located next to the Toyota Center. The purpose of the event is to introduce and serve as a fund raiser for a new non-profit organization which has been formed to create and build the Houston Automobile and Transportation Museum. This is an ambitious and significant undertaking to create a nationally recognized automobile museum in downtown Houston. Read more here. A printable registration form is available here.