It's not a howler monkey in a blender. It's not a screaming alien. It's the newest BMW to wear the highly unofficial crown of "world's gnarliest E30."
The previous title holder (according to my review committee of one) was another E30 in the Kingdom of Jordan, which backfired so loud it sounded like AKs were going off. The desert landscapes where the car ran added to that atmosphere.
This silver car, though, is a supercharged E30 and it sounds like it is from another planet.
(Hat tip to Automatch!)