nine “teens” or “nineteens”

I first understood he was doing nine teenagers in the back of his brand new spanking South African (factory spec!) 5 cil 2.6L bus… but I (or he?) was only dreaming …
He said he was doing 185kmh all day long with his nineteen inch wheels under this bus. for some of you this bus must look like a brick… it even has the red color of it, but hey, even me, the “wedge bus” hater of before has turned when seeing all Ivans busses, squeeky clean busses with just that little bit more… we got to say it to you, Ivan Mc Cutcheon, you have taste in cars… even in late busses !!!