Turbo was a band that existed in the years long gone known as the 80s. While the 80s brought some cheeseball glam metal/butt rock/slut music Turbo were busy writing some of the most epic and influential thrash to come from Poland. Give it a listen and be amazed by how great it is.
Official Myspace is oriented more towards new songs which use strictly clean vocals. Of the songs on the myspace I'd recommend The Scroll for a more melodic song that happens to be heavily progressive with lots of melodic riffing and soloing. I also recommend The Last Warrior to get a taste of their 80s material.
Unofficial Myspace focuses more on older material which uses fast chunky riffs with harsh vocals and quick shredding. Kind of a weird cross of Slayer, Venom, and something closer to power metal in nature.