I tried `Negra Modelo (dark)' by Grupo Modelo, despite the fact I'm not usually a lager fan. I put my thoughts on the beer below. I'm not sure where you can get it in this area, since someone else bought it for me.
Negra Modelo: 3.7/5. B.
A dark burgandy with light carbonation that almost immediatly seems to fade. Little head retention. Smells of yeast with a slight under current of spices. Taste is viscous, cool and creamy across the tongue. It has a light oaken notes, with a light nuttiness and sweet undercurrent. Not a very strong tasting beer. There's a delayed, slightly bitter aftertaste that fades quickly. Drinkability is high, because its inoffensive play in the mouth, and because it doesn't bludgeon you with either flavour or alcohol.