DrunkFace wrote:
destruktion_6143 wrote:
DrunkFace wrote:
No, its HOW you drive WHAT you drive.
have u seen the topgear episode where they make a prius drive as fast as possible round the track and a bmw m3 has to keep up. the bmw was more efficient than the prius
Firstly the test is flawed.
1. The bmw sat behind the prius the whole time. Have you seen the mythbusters drafting episode where they got anything up to 70% better fuel efficiency?
2. They were hardly being driven in the same fashion. Same speed maybe but definitely not the same way.
3. It was on a freaking race track.
4. The prius is a piece of shit.
The prius is designed to beat the EPA ratings system. Part of the EPA test is that a car is driven around and then stops and idles, this cycle repeats. The Prius beats the test because when it stops, its motor isn't running. If a gas car were allowed to stop its engine during the test then its EPA reading would be much higher too. And the prius gas engine turns on at about 40 miles per hour so for a large portion of the test the prius never runs the gas engine.
Source If you look at the source and see the amount of time at idle and the amount of time during the test under 40 miles per hour, you can see how the prius has been designed to beat this test.
Its no wonder that driving a prius in read world conditions shows it to underperform compared to the EPA readings. I wouldn't doubt that flogging prius would show that it underperforms compared to a sports car.
EDIT: I should add that if you are flogging the prius at a constant high speed around a race track, you have set up a test that pretty much nullifies any engineering advantage that the prius might have had over the sports car. Its not a contest that the prius can win.
Last edited by Diesel_dyk (2009-03-02 20:37:38)