We know it’s good business, and it’s a product that will appeal to a large market segment, but we can’t help but get that icky ’70s feeling all over again when we see stuff like this.

Auto Meter has rolled out it’s Ecometer, a plug-in fuel economy monitoring gauge for vehicles equipped with OBD. The gauge has multiple modes to select stuff like instant fuel economny, average fuel economy, etc.

We could go on and on, but we’ll spare you and share the link to the website that gives you all the details.