Sentence 1 is relatively uncontroversial. Sentence 2 doesn't follow from it however. If you mean "if everyone wants large private blocks of land for their house

Sentence 1 is relatively uncontroversial. Sentence 2 doesn't follow from it however. If you mean "if everyone wants large private blocks of land for their houses, and wants to be able to travel with minimal effort/inconvenience, they'll almost certainly need access to a car", then sure.