The standard features of the Chevrolet Impala Police include 3.6L V-6 302hp engine. 6-speed automatic transmission with overdrive. side seat mounted airbags. curtain 1st and 2nd row overhead airbags. airbag occupancy sensor. air conditioning. 17 steel wheels. cruise control. ABS and driveline traction control. StabiliTrak electronic stability. 6 way power driver seat.