Ah, automotive is another story entirely. There's no one to "talk" to except the GMs and owners. Even still, unless you've provided hookers and blow, are fucking their sons/daughters, or are otherwise close to 'em, you're gonna have a hard time getting a vehicle at cost or thereabouts.
Best method for that is to hit 'em up at the end of the month at the end of a quarter with the intention of buying something they're having trouble moving in the first place.
For reference - I've been in and out of just about every dealership in the greater Houston area numerous times installing shit in their phone closets, pissing off the front desk chicks with test calls and dropped calls, giving the managers a fuckin' fit, and you could walk in today and ask everyone if they know me... I doubt anyone would, except the Haas's.
fucking definity bullshit phone system....
Up in Conroe there is Gullo, though. I'd probably check there first.