>now there's a thought. kinda like a Cessna Skymaster: push 'n pull engines,
>front 'n rear.

Back in the days when the first Audi Quattro Coupe was dominating the
rally world, VW decided to try another alternative. They made a
twin-engined Jetta. Getting the gearshift points synchronized was
critical, as there were TWO gearboxes, clutches etc. Apparently it
worked well, but was never developed beyond the "VW1" prototype.

I remember reading about this in "Wheels" back at the time... and
hoping it would lead somewhere!