Excellent.
Your son is very lucky.Looks like a great quad.They scream those things.
When i was about 12, my dad bought me a KX80 AND I RACED IT EVERY WEEKEND, loved it.just loved it.

The only downside, was that i had to wash 1 million cars to pay it off.
My wife is having "my first son" in december.I will buy him cool stuff like that too, hopefuly.
Well done Wonder. More kids need more dads like you.