Installing rail lines and power is an incredibly expensive, permanent proposition at a time that tax receipts simply don't exist to pay for them. Also, OKC has never been a mass transit-committed town, so we'd be creating a permanent - and substantial - budget item that no-one can afford. I recall that Classen Boulevard was initially created as a trolley line serving then-remote suburban neighborhoods, and it was powered by the Belle Isle power station (demolished in the 1970s I believe). Who's got money to do that again?

More realistic options: Efficient - Hybrid or CNG busses. Cute - More of the trolley shuttles that we have.