True, true. The cars are the easy part. Its the skylanes, implementing new legislation/laws, getting the new tech to create said lanes, adding new radar stations to monitor millions of people flying sky cars, etc. The list is to big to even fully imagine. Also these sky cars are not going to be cheap for awhile, they will begin quite expensive until they can be fully integrated into society. Even then... why would they bring the price down when people would still be perfectly capable of driving on the ground. You know they will be charging premium prices for these cars. Basically its going to be a rich man's car for years and years.