Diesels in london

[Ruan]

Or maybe why don't we do the REALLY sensible thing and rather than have Diesel engines sat in their most inefficient area almost all of the time, put them to use as a Diesel-Electric - have the engine power electric motors - even if you want, have a few small batteries, just to get the show kicked off until the engine can start and provide power.

That way you can have am engine that sits in it's absolute peak efficiency area generating electricity. Make it super, super quiet - IMO this is the best way to go. Then if you absolutely must, have it so that you can turn the motor off in urban environments.