To heck with your ls based v12s how about a ls7 based w16
Two naturally aspirated LS7s turned into a W16, with Higgins race heads and a machined alloy billet bridge between the two engine mounts. There's also a plate across the back to which the custom transfer case is mounted, taking the drive from both cranks to a center shaft with the flywheel. It's fully exposed and produces 1,400 horsepower as an emissions-compliant package, while transmission supplier Albins also came up with an alloy billet transaxle for this W16, incorporating a six-speed sequential gearbox and a limited-slip differential. The idea is that the whole drivetrain will act as a stress-bearing member of the chassis, just like in a Ferrari F50.