Cheetah
There is no anial on the planet faster than the cheetah, which can hit top speeds of up to 110 km/h. Their rate of acceleration is faster than most cars, as they can go from 0-110 km/h in around 3 seconds.
The average adult cheetah weighs on at around 88-143 pounds. From the head to the start of the tail is around 44-53 inches, while the cheetahs tail is generally 26-33 inches in length.