So I bought a new Prius last year, and this year I am exempt from emissions testing, but I have to wonder about it. I've seen few discussions here about it and have some questions. First test is a gas cap test. No worries there. Second test is a test at speed. They need to get the engine at a certain RPM at a certain speed to do this test. So my question is, do these techs at the emissions place know how to get the Prius engine to maintain a certain RPM at a certain speed? The front tires are on a pair of conveyers so they can spin and simulate the car on the road, putting the engine under a certain load. The second test is an idle test. Well, the prius usually idles around 1200rpm, and the test is for idle between 650-900rpm. So does this make the Prius fail all the time? Who has taken their Prius in for testing and how has it gone?