ReVolt said it will bring a Peterbilt 379 retrofit with a hybrid drivetrain to the Mid-America Trucking Show in March.

A French company is working on a new retrofit kit that can convert your old vehicle into a hybrid electric one in just a day.

Aftermarket hybrid hackers (CNN Money's term ... The two companies will be selling the conversion kits by the end of the year. The EDrive kit will cost you $12,000, installation, and Hymotion's ...

A Prius kit for fleet orders over 100 will cost about $9,500 CN or $8,286 US. Pricing hasn’t been announced for the Escape Hybrid plug-in kit, but Hymotion promises it will be 2.5 times ...