In fact, they manufacture a whole range of vodka products, including ordinary vodka, in a variety of coloured labels:
Red - 45%, very nice mixed, and even drinkable straight (a lot more so than tesco vodka, and all it's own-brand friends)
Blue - 50%, Similar to the above
Black - 55%, Difficult to find, expensive, but very, very, nice. It has none of the chemically 'vodka-taste' that most cheap vodka has. In fact, it tastes vaguely spicey. Highly recommended. Smirnoff black is not black smirnoff ice.

Flavoured vodka (green, purple, few others) - 45%, lime, blackcurrant, few others. I recommend the lime one mixed with sprite...

Alcopops -
Smirnoff Ice (now in black and white varities). - 5.4% - Fizzy alcoholic lemonade. A very girly drink. White tastes just like metz, although it is decidedly more girly. Black tastes like blackcurrant. I think.