The Next GNX Buick Could Build

A Buick GNX is coming, but it's not coming from Buick. Performance company SLP plans to build their own GNX, pictured above, with output above 300 horsepower and a more aggressive look. Unless they make one key improvement I don't think this is the GNX Buick should build. » 2/29/12 1:30pm 2/29/12 1:30pm