Experts believe that if the automotive technology industry can reduce fuel consumption by 3% after years of research and development, it can be considered a very significant research result; but even if it can reduce fuel consumption by 3%, it is not obvious to consumers in real life. Automobile manufacturers have already tried to save fuel as much as possible without affecting the acceleration power performance. At present, the cars produced have reached the optimal ratio of fuel efficiency and power. Based on the above, is the following statement correct? ["Car consumers don't care if they save 3% on gasoline.", 'The cars currently produced have reached the best braking force effect.', 'No matter how automotive technology develops, the fuel-saving effect will not be significant.', 'It is very difficult to make a breakthrough in the optimal configuration ratio of fuel-saving and power.']