CNN 10《The History of Germany's Autobahn》

The Autobahn, which is German for car runway, connects the entire country of Germany,

but it's much more than just your averge interstate highway.

请教老师：这里单独使用了much more than 是什么意思呢？

通常，看到的结构是 much more + 比较级+ than， 这样我能理解的。

但是现在much more后没有比较级，仅仅是much more than,怎么理解含义呢？