Motorhead Messiah Johnathan Goodwin can get 100 mpg out of a Lincoln Continental, cut emissions by 80%, and double the horsepower.Does the car business have the guts to follow him?From: Issue 120 | November 2007 | Page 74 | By: Clive Thompson--------------------------------------------------------------------------------"Check it out. It's actually a jet engine," says Johnathan Goodwin, with a low whistle. "This thing is gonna be even cooler than I thought." We're hunched on the floor of Goodwin's gleaming workshop in Wichita, Kansas, surrounded by the shards of a wooden packing crate. Inside the wreckage sits his latest toy -- a 1985-issue turbine engine originally...