We've already shown you the Mercedes AMG 6.3-liter V8 engine, the world's most powerful naturally-aspirated eight-cylinder engine, exploded, showing us its bits n' pieces. But we found this testing photo earlier today and frankly, thought it was cool. More below.

These ultra-modern dynamic test benches at AMG can accommodate engines with an output of more than 735 kW/1000 hp. The 6.3-liter V8 that's under the hood of the SLS is only half that, so it can take the pressure. Here's some more photos if you're interested. Frankly, who wouldn't be?