The Wheels On The Bus 3500th Post Contest

Things have been slow in the contest area lately so I decided to have

My 3500 post contest.
Wheels on the bus go round and round contest.

I drive a school bus. Add these up, closest to exact number by
10:00 AM on Saturday Nov. 19 th forum time wins this prize.

Ties go to the first poster.
First to get it exactly right wins and contest ends. I have mailed my answer to a staff member since they never enter these contests.

A. The number of my bus.
B. The total number of people that can be in the bus legally at one time.
C. The total number of miles I drive on an average day.
D. The total number of tires on the bus.

Total: ____________________

The prize will be posted shortly, I needed to get this started to motivate me to pick something out.
Don't worry, it won't be too extravagant.

Rules:
One guess per member. One guess and done.
Must have 50 quality posts. 2 weeks as a member of CCF.
Live in the USA, UK, or Canada to win.

One and only hint: The answer is a number somewhere between 50 and 750.