Converted is right not to be converted
Shale oil refining is a great option, but implementing it in the monopolised industry is the issue.
The piston engine will be here for ever. Well at least our lifetime as there are technologies like that of VERTIGRO which produces both bio-diesel and ethanol. Its five years away for self farmers but the technology kills everything else.
Apart from that electric will be an accepted norm as its cleaner and way more efficient way to travel regardless of using coal powered stations. The efficiency of coal powered stations still produces way less co2 than using petrol for transport. The facts are there but we are have a monopoly in battery tech also since the mid nineties NiMH hydrate bought and controlled by a Giant Oil Bastard and now also it seems OEM are controlling production of newer battery technologies by placing massive orders.
Finite fuel reserves---
Crude Oil - 30 years (more for saudi)
Shale oil - 100 years
LPG/CNG- 80 years
Bio-diesel/ethanol - infinite via photosynthesis of algae
Electric - infinite (improved cheaper solar, seawave and thermal towers, Tide Hydro stations as used in Chile since 1920s now owned by our own Pacific Hydro)
Hydrogen - infinite & possible improvements could see this to be the saviour of the piston and rotary engine. Althought he rotary engine wont be used in mazdas for about 10-20 years as a performance motor from 2012.
Also I never believed it but some backyarders have 100s of orders for the Hydrogen/petrol/diesel hydroxy hybrid conversions and customers swear by them

such backyarders have been on a current affair, new inventors, today tonite, catalyst and some other shows with more credit. Anyone seen those normal jo blo tinkerers and lawn mower repairers?