Close ratio versus wide ratio transmissions explained

Close ratio transmissions keep an engine closer to its optimal power band for better acceleration. Wide ratio transmissions allow engine RPMs to drop more significantly between gears. This difference impacts performance, with close ratios generally leading to quicker acceleration times. Wide ratios are often found in older vehicles or specific performance applications. Modern cars typically have fixed gear ratios, unlike older models where transmission choices were more varied. Continuously variable transmissions offer the closest possible ratios for maximum efficiency and smoothness.