[2011G6E]

The Prius had barely come out in large numbers before other manufacturers were getting far better fuel economy figures out of cars with "normal" drivetrains like small turbo diesels and petrol engines with interesting new technologies in them, combined with better gearboxes.

With LPG, it probably made sense back when 10ltr/100km was an unobtainable dream in anything but some funny little tiny foreign cars, but now if a manufacturers large sedan doesn't get way better than 10/100 on the highway, it's vilified as old fashioned and hopelessly out of date. Our G6E used to amaze me by sitting down on 8/100 when our four cylinder 1982 Celica can't get anywhere near that good a fuel economy.

With the price rises of LPG, and the amazing economy of "normal" cars, there's no real benefit of going the LPG route anymore.


Hydrogen has a whole other long list of limitations and problems of its own.