If a racehorse and car are going 50mph they would both be going the same speed.
I would say brown...
The best racehorse ever would be Man O' War and that's not just an opinion he was voted the number 1 (out of 100) best racehorse in the 20th century if you don't believe me look it up on his wiki.
i would say eight belles
Why would you bury a dog in litter
That would be Phar Lap
A cheetah or another racehorse.
Gunsynd was the racehorse known as the 'Goondiwindi grey'.
Strong and powerful determind,respecting,and smart.
Those would be called the lead ponies.
It would probably be a registered [insert breed here]. Thoroughbreds are the most common breed of racehorse, but Arabians, Quarter Horses, Paints, and Appaloosas all race as well.
A fast race horse would be "ein schnelles Rennpferd".