Business Green: UK-based green car startup Axon Automotive yesterday unveiled a new plug-in hybrid featuring a lightweight carbon fibre chassis that the company said would deliver fuel efficiency of over 100mpg. The Northamptonshire-based firm, which is part funded by the UK Technology Strategy Board and has developed its technology in partnership with Open University and Cranfield University, said the new hatchback would go into production at small factories in the UK and mainland Europe, with the …