After you burn the ISO file to DVD, just insert the DVD to start the setup. If you're just installing the software on one machine or don't have access to a DVD writer, you can mount the ISO file as a virtual device. A virtual device created by mounting an ISO file is known as a virtual drive or virtual disk.
It's informally known as The 'Ring by petrol heads the world over but the formal name for the track is the Nurburgring Nordschleife which translates as Nurburgring North Loop. The track is 13 miles long and there are 73 corners to negotiate so it's not for the faint hearted. The track was originally the German formula one circuit but this came to an end after Niki Lauda's horrific accident in 1976.
If you're looking for the ultimate driving thrill on the road, then the Nurburgring is almost certainly it. It's legally classed as a toll road for public driving sessions but is essentially a track where you can drive at any speed whilst observing the German road laws.