The sport model came with aluminum trim, but you could option them with African Rosewood trim.
Otherwise, the dealer is not correct on the AWD being a sport model. All sport models had aluminum pedals. They also had 19" wheels and different front fascia, which arguably can be replaced easily. They had darker headlight housings, among other features.
In the 2006-2010 Infiniti M, you could not get
AWD and
sport in one package. That came in the next generation.
Here's an example of a sport package vehicle:
https://forums.nicoclub.com/post6773416.html#p6772714