With $150,000 diamond-studded Bentley Knob, you have seen the most opulent knob that is practically useless except for its royal looks. And now with Gaslock Indy Cator, it’s all about the radical design and hi-tech features that help you save on your fuel too besides adding to your whole driving experience. The Gaslock Indy Cator has an energy-saving function that tells you the exact point to shift to save gas, and if you follow its timely shifting tips, you can end up spending 15% less on fuel. The LCD on its top indicates which gear you are currently using. So, is perfect for those novice drivers who hate struggling it with the gear. And, the auto-dimming feature in the LCD lights-up your car’s ambience too, all for $169.

via Autoblog / SciFiTech