The Lotus Omnivore engine promises unprecedented multi-fuel capabilities but until now has been cloaked in secrecy. Now, thanks to an interactive animation Group Lotus has put together we're able to see it's one crazy-interesting engine design.

Talk fuel efficiency and words like "direct injection," "flex-fuel" and "variable compression ratio" are common. But they aren't usually combined with "two-stroke." Unless you're Lotus that is.