SDL.NET wrapper: how to rotate a sprite ?

Question

Hi guys, i'm trying to develop my first and simple videogame. I'm using SDL.NET (wrapper .NET of famous SDL) and c#.

I'm trying to rotate my sprite (my "car") when user press down array, up array .. I'm using something like

this.Surface =  this.Surface.CreateRotatedSurface(90);

But it not work ! I've error on screen... :(

I know i can use something like

this.Surface = new Surface("my-sprite-right.png") // for right

or this.surface = new Surface("my-sprite-left.png") // for left

but i don't like that solution...

Does anyone know how to manage "rotation" of sprite ?

Thank you !