Complex sentence: These motors are each mated to a single speed aluminium gear ratio which propels the car from 0-60 MPH in 5 seconds and from 0-90 MPH in 11.2 seconds.
Split into simpler sentences: These motors are each mated to a single-speed aluminium gear ratio. Its acceleration time from 0-60 MPH is 5 seconds, and from 0-90 MPH, 11.2 seconds.