Acceleration is the rate of change of velocity.
For the starting phase:
`a=(32-0)/3.88=32/3.88 =8.247 m/s^2`
For the stopping phase,
`a=(0-32)/3.96=-32/3.96 =-8.0808 m/s^2`
The negative sign indicates that here retardation operates actually.
So, the ratio of starting to stopping acceleration of the sports car is `8.247/-8.0808=-1.02`