There's been a lot of chat in the Forum recently about "good guitar tone" and the use of amp sims vs mic'ing up amps.
Just for info and a comparison, this tune uses both methods. The main guitar solo around 3:15 is just guitar and Egnator Tweaker amp (with a distortion stomp box) being mic'd with an SM57 at the cone center but off axis. The only Sonar effect was the delay.
All the other guitar parts were recorded by mic'ing the amp, but running that recorded part through Guitar Rig... thus the auto-wah parts, and ethereal tone in the beginning, and the bluesy tone at the end. So this is a "hybrid" method of using an amp sim demo.
And as I mentioned in my previous post, the funky rhythm guitar is actually NI's "Funk Guitarist" plugin.