At the very least...get your maintenance covered for as long as they'll do it. Oil changes etc run about $100.00 with tax. They're offering all sorts of rebates on their other cars...maybe they'll toss in some sort of rebate...(long shot). Free gas?
Installation of door sills when you order them? (I had mine installed for $188.00. I know that was steep for something I could do myself, but I can't do it myself...no mechanical know-how).

Free touch up paint..

Free Car washes anytime.

Free pedicure and manicure...(hey, a girl's gotta look her best driving this car)!