Austin went for a drive in his new car. He drove for 5 hours at a speed of 62.5 miles per hour. For how many miles did he drive?

To find the number of miles Austin drove, we can multiply his speed by the time he drove: 62.5 miles/hour * 5 hours = <<62.5*5=312.5>>312.5 miles. Answer: \boxed{312.5}.