The average power output of a car engine varies depending on the vehicle type. For standard vehicles, the average horsepower is around 180-200 hp. Here are some specific averages by vehicle type: small cars typically have around 100-150 hp, midsize cars usually have about 170 hp, large cars often have around 300 hp, and crossovers generally sit at around 200 hp. Small SUVs can have as much as 240 hp. It's important to note that while horsepower is a key indicator of engine power, it is not the sole determinant of a vehicle's speed, as factors like torque, weight, and drivetrain also play significant roles.