It's not off topic to discuss energy demand drivers leading to magnet adoption. American trucking is in the midst of converting from diesel to natural gas to natural gas/hybrids. It's happening as we speak. Non commercial transportation is following. I'll be looking at a hybrid next time myself. As for "peak oil", that line has been moved further away due to the North American oil boom but even so, it's better to go with cleaner fuels since despite what old men with Nazi nicks say, anthropogenic climate change is a fact. We have entered the Anthropocene, a new epoch. The Holocene is over and only a dinosaur can deny it.