If there’s a bad ass driver inside of you, but one who cares for the environment and drives a Toyota Prius, there’s still a chance for you to quench your thirst for a loud, aggressive engine. If you can pay $150, you can get Approaching Vehicle Audible System for your Prius.

What does that do, you ask? Well, the external speakers are meant to signal the approach of a Prius. I guess that the Japanese didn’t feel comfortable with the Prius sneaking up on the as quietly as it did. Still, they’ve managed to create a sound that creeps me out. But in order to see what I mean, check out the video below.

Via Autoblog.