The Insight's Continuously Variable Transmission (CVT) provides infinite ratios to keep the engine operating within its most efficient range. Forward gear ratios are infinitely variable between 3.172–0.529 and reverse gear ranges from 4.511~1.693. Final drive is 4.20:1. On Insight EX models, paddle shifters mounted behind the steering wheel allow the driver to engage a manual shift mode and select from seven simulated gear ratios for full control over acceleration and engine braking. Since the CVT's gear ratios are continuously variable the system electronically directs the transmission to up- or downshift into pre-determined ratios when the driver taps the shift paddles. In normal driving, the CVT allows the engine and IMA motor to stay in their most efficient operating range thereby providing superior fuel efficiency to that of a conventional automatic transmission with fixed gear ratios. The CVT's variable gear ratios allow for both quick, initial acceleration and efficient, low-rpm cruising.