Boulder Hybrid Conversions converts Priuses to plug-in vehicles, allowing them to use less gas, without compromising the ability to drive the vehicle as a regular hybrid. With Colorado's alternative fuel vehicle tax rebate, Coloradans can receive up to 75% back on a plug-in conversion - that means you can convert your Prius starting at around $2,600 (after rebate). Boulder Hybrid Conversions is a collaboration of people who have been involved with hybrid conversions and electric vehicles for several years. Together, we have completed over 150 successful hybrid conversions. Our goal is to help Colorado get more and more plug-in vehicles on our roads. Please see our FAQ for more information.