This is repeated around the world. Incentives are designed under the assumption that certain vehicle types need a leg up. Then car companies build cars to that specification, with an associated cost, and sell them to those who can afford. So the hybrid ferrari gets a break, but the non-hybrid but nevertheless more fuel efficient honda civic doesn't. Parking for electric vehicles. Bus lane access for hybrids. hov lanes now filled by rich people in limos (i saw a limo block a bus lane recently for 10 minutes. People on the buss were livid). Tax breaks for strapping a duracell to your SUV and calling it a hybrid. All started with good intentions but were corrupted by those with the resources to hack the rules.