Answer: cultural diversity has its positive impact only if there is democracy, i.e. free movement of goods, ideas, people. If there is this freedom, then Europe is an extremely creative, free and progressive place. Europeans experienced times of nationalism, wars, revolutions so Europe in itself is not a guarantee of creativity, freedom and progressive thinking, but if there is a population able to establish really "European lifestyle" than diversity can have unique consequences.
Explanation: usually there is a tendency to supress differentness, but Europe experiences the worst consequences of such tendency so there is some sort of notion that diversity is creative and productive and that it is worth of taking care of. Impact ? Populations speaking different languages. educated, flexible, able to work with advanced technologies, psychologically open, accostumed to "different" things, able to travel to distant places and learn.
A car is the type of transportation that is not mass transportation. It means that you cannot drive many people in a car, whereas a bus, a streetcar, and a train can accommodate many people.
During the age of imperialsm, the economies of European colonies were seen as testing grounds for new and risky technology, due to a number of factors that include the usage of the local environment and conditions, such as climate and soil, or social and political conditions; but also, some of these new technologies were a result of the direct borrowing and adaption of indigenous practices or the use of indigenous knowledge (medicinal plants, for example) being gradually redeveloped by European science.