> Modern cars work, let’s say for the sake of argument, at 98% of what’s physically possible with the current engine design. If a major automobile manufacturer

> Modern cars work, let’s say for the sake of argument, at 98% of what’s physically possible with the current engine design. If a major automobile manufacturer is able to get away with still using its 50 year old engine block design based off of valve technology that's a century old at this point, and crowbar it into everything from pickup trucks to supercars with success, I can guarantee you that it's not operating at the cutting edge of material and thermal engineering.