There is a factory supercharger option for CR-Z's ... if someone feels like taking a few G's to their dealer.
The power gains are still less than if Honda put a K20 in it from the start. 187hp with the supercharger added on? That's weak...
Heck, just stick the 185HP I-4 from the current Accord in the CR-Z and it would probably get the same gas mileage as a supercharged CR-Z. Not to mention it would be faster without the ~250 pounds or so that the hybrid motor, batteries, and supercharger adds.
I think the CR-Z fails on both the performance front and the fuel-economy front. The CR-Z has LESS total HP than a Prius (which makes it really slow), and the fuel economy is considerably worse than a Prius despite the CR-Z being a lighter car.
If they put a K20 in the car, the car would get abysmal fuel economy and nobody would care about the vehicle except a few people. A 2700lb 200hp car is nothing to get excited about as Honda already has a car like that, it's called the Honda Civic Si. What the car needs is a diet, plain and simple.
A CR-Z without the weight of all the hybrid baggage would be about 2500 pounds. 2500 lbs + the 220hp K20 from the RSX-S would be a pretty nice package. With the right gearing, it would easily do well over 30 mpg on the highway, so the gas mileage would be far from "abysmal".
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